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Deng X, Dong L, Chen H, Wang W, Yu Y, Gao Y. Sensitive Determination of Arsenic by Photochemical Vapor Generation with Inductively Coupled Plasma Mass Spectrometry: Synergistic Effect from Antimony and Cadmium. Anal Chem 2024; 96:652-660. [PMID: 38148033 DOI: 10.1021/acs.analchem.3c02331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
A novel method for the determination of trace arsenic (As) by photochemical vapor generation (PVG) with inductively coupled plasma mass spectrometry measurement was developed in this study. The synergistic effect from antimony (Sb) and cadmium (Cd) was found for the photochemical reduction of As for the first time. Effective photochemical reduction of As was obtained in the system containing 10% (v/v) acetic acid, 5.0 mg L-1 Sb(III), and 20.0 mg L-1 Cd(II) with 100 s UV irradiation. Analytical sensitivity of As(III) was comparable with that of As(V) under the tested conditions, making direct determination of total As feasible. Compared to the pneumatic nebulization method, analytical sensitivity of the developed method was enhanced about 50 folds. The PVG efficiency was estimated up to be 99 ± 3%. The limit of detection (LOD) (3σ) was found to be 2.1 ng L-1 for As, which was improved about 30-fold compared to that using direct sample introduction solution nebulization. Considering the sample dilution prior to analysis (usually one-fold), the LOD was actually enhanced about 15 folds. The relative standard deviations of seven replicate measurements of 1.0 μg L-1 As(III) and As (V) standard solutions were 2.3 and 2.9% for As(III) and As(V), respectively. The proposed method was successfully applied for the detection of As in certified reference materials of sediments (GBW07303a and GBW07305a), as well as three water samples. The mechanism of the PVG system was investigated by using gas chromatography mass spectrometry, electron paramagnetic resonance, and X-ray photoelectron spectroscopy. (CH3)3As along with (CH3)3Sb were synthesized under UV irradiation. Besides, volatile species of Cd were also found. The result obtained in this study is useful for developing efficient "sensitizers" in PVG and understanding the transformation of As in the presence of hydride/cold vapor forming elements in the photochemical process.
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Affiliation(s)
- Xiuqin Deng
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Liang Dong
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Hanjiao Chen
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
| | - Weigao Wang
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Ying Yu
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Ying Gao
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
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He Y, Hu J, Zou W, Chen H, Jiang X, Hou X. Chemical vapor generation of tungsten for atomic spectrometric determination: Homogeneous sensitizer and mechanism study. Anal Chim Acta 2023; 1278:341746. [PMID: 37709475 DOI: 10.1016/j.aca.2023.341746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/13/2023] [Accepted: 08/21/2023] [Indexed: 09/16/2023]
Abstract
BACKGROUND Inductively coupled plasma-mass spectrometry (ICP-MS) is one of the most powerful instrumental techniques for the determination of tungsten for its low detection limit and wide linear range, while it remains challenging since the analytical performance can be affected by complicated sample matrix. Chemical vapor generation (CVG) harbors the potential to be an alternative to conventional solution nebulization for sample introduction to reduce matrix effect. However, the CVG of tungsten was low in efficiency. It is clear that green and homogeneous enhancement for CVG of tungsten is desired and the mechanism is worth in-depth investigation. RESULTS Two green and homogeneous enhancement systems for CVG of tungsten were studied, including photochemical vapor generation (PVG) and hydride generation (HG) with sensitizers, Fe3+ and DDTC, respectively. Under optimal conditions, the limits of detection (LODs) were 0.02 μg L-1 for the PVG and 0.003 μg L-1 for the HG, respectively. For PVG, the Fe3+/Fe2+ cycling, free radical species, gaseous product, and the chemical speciation evolution of W in the PVG process were studied in detail. Photo-Fenton effect, generated reductive radical ·CO2-, gaseous product Fe(CO)5, and the mixed valence of W5+/W6+ in the PVG process were found to be crucial for the enhancement. As for HG, the complexation between W(VI) and DDTC might be conducive to the enhanced HG efficiency. SIGNIFICANCE This work not only in-depth expands the element scope of CVG, but also investigates the enhancement mechanisms experimentally, which might render a deep insight into the CVG processes and foreshadow new guidelines for screening green and efficient homogeneous sensitizers for CVGs of more elements in the future.
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Affiliation(s)
- Yujing He
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Jing Hu
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Wei Zou
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Hanjiao Chen
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Xiaoming Jiang
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Xiandeng Hou
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China; Analytical & Testing Center, Sichuan University, Chengdu, Sichuan, 610064, China.
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Dong L, Wang W, Ning Y, Deng X, Gao Y. Detection of trace antimony by vanadium (IV) ion assisted photochemical vapor generation with inductively coupled plasma mass spectrometry measurement. Anal Chim Acta 2023; 1251:341006. [PMID: 36925311 DOI: 10.1016/j.aca.2023.341006] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 02/21/2023] [Accepted: 02/21/2023] [Indexed: 02/24/2023]
Abstract
In this work, a method for sensitive detection of trace antimony (Sb) was developed by inductively coupled plasma mass spectrometry (ICP MS) coupled with photochemical vapor generation (PVG). V(IV) ions were used as new "sensitizers" for improving the PVG efficiency of Sb. Factors influenced the PVG and the detection of Sb by ICP MS were investigated, including the type and concentration of low molecular weight organic acids, the UV irradiation time, the concentration of V(IV) ions, the air-liquid interface, the flow rate of Ar carrier gas, and interferences from co-existing ions. It was found that efficient reduction of Sb was obtained in the medium of 10% (v/v) formic acid (FA), 10% (v/v) acetic acid (AA), and 80 mg L-1 of V(IV) with 100 s UV irradiation. Under the selected conditions, there was no significant difference in analytical sensitivity between Sb(III) and Sb(V). The limit of detection (LOD, 3σ) was 4.7 ng L-1 for Sb with ICP MS measurement. Compared to traditional direct solution nebulization, the analytical sensitivity obtained in this work was enhanced about 19-fold. Relative standard deviations (RSDs, n = 7) were 1.9% and 2.3% for replicate measurement of 0.5 μg L-1 Sb(III) and Sb(V) standard solutions, respectively. The proposed method was applied for the determination of trace Sb in water samples and two certified reference materials (CRMs) of sediments with satisfactory results. Moreover, the generated volatile species of Sb in this work was found to be (CH3)3Sb.
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Affiliation(s)
- Liang Dong
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Sichuan, 610059, China
| | - Weigao Wang
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Sichuan, 610059, China
| | - Yongyan Ning
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Sichuan, 610059, China
| | - Xiuqin Deng
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Sichuan, 610059, China
| | - Ying Gao
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Sichuan, 610059, China.
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Determination of trace tellurium by photochemical vapor generation-atomic fluorescence spectrometry using bifunctional Co-MOF-74 for preconcentration and sensitization. Anal Chim Acta 2023; 1247:340859. [PMID: 36781244 DOI: 10.1016/j.aca.2023.340859] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/17/2023] [Accepted: 01/18/2023] [Indexed: 01/19/2023]
Abstract
The determination of trace tellurium in real samples with complicated matrix can be rather challenging due to the low abundance and interferences. Herein, we report a new method for the highly sensitive detection of Te(IV) by photochemical vapor generation-atomic fluorescence spectrometry (PVG-AFS), utilizing Co-MOF-74 as an adsorbent and a precursor of Co2+ ion sensitizer for preconcentration and enhanced PVG efficiency. The synthesized Co-MOF-74 can completely adsorb Te(IV) within 10 min in a wide pH range. Following filtration and re-suspension in a dilute solution of formic and acetic acid, the adsorbed Te(IV) was converted to volatile compounds under the UV irradiation and swept to AFS for detection. A limit of detection of 0.08 ng/mL for Te(IV) was obtained after a 50-fold preconcentration. The proposed method was used for analysis of various natural water samples for trace Te(IV), with satisfactory spike recoveries achieved.
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Portugal LA, Palacio E, Frizzarin R, Santos Neto JH, Cerda V, Ferreira SL. Multi-commutated flow system for inorganic selenium speciation in infusion tea samples by chemical vapor generation atomic fluorescence spectrometry. Talanta 2023; 252:123897. [DOI: 10.1016/j.talanta.2022.123897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/24/2022] [Accepted: 08/26/2022] [Indexed: 10/14/2022]
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Photoactive Materials for Decomposition of Organic Matter Prior to Water Analysis—A Review Containing Original Research. Catalysts 2022. [DOI: 10.3390/catal12060616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Water plays a fundamental role in meeting the basic needs of society. Surface waters contain numerous organic pollutants, such as pesticides, drugs, and surfactants. The use of photolysis processes in organic matter degradation not only has practical applications in wastewater treatment but is also of major importance in the pretreatment of samples prior to the trace analysis of numerous analytes. The heterogeneous degradation is simple to implement prior to ultra-traces determination and is the only one allowed before the speciation analysis. Speciation analysis is currently the most important environmental challenge. The analysis of water, including tests associated with wastewater pretreatment and the monitoring of aqueous ecosystems, is the largest segment of environmental analysis. In the trace analysis of water, organic compounds are the principal interfering compounds reducing the quality of the obtained results or even preventing the determination of the examined analytes altogether. Some analytical techniques do not perform well in the presence, for example, of surfactants, so mineralization is sometimes required. Advanced oxidation processes are used to remove interfering organic compounds. The oxidation can be performed using homogenous photolysis (UV mineralization with hydrogen peroxide addition), while heterogenous photolysis using semiconductors helps to increase the removal efficiency of interferents dissolved in water. Utilizing semiconductor nanostructured materials as photocatalysts has been shown to be effective for the adequate removal of a wide spectrum of pollutants in water. Several semiconductor systems are used in the degradation of organic compounds, e.g., TiO2, Fe3O4, WO3, Fe2O3, ZnO, and mixtures of these oxides enriched with various precious metals, such as silver or gold. It is very challenging to manage the selectivity and reduction power so that organic compounds can be degraded but without disturbing the speciation of As, Cr, or Tl. Chemical modification of samples and the selection of semiconductor layers, light wavelength, and pH allow for the targeted degradation of specific compounds but may also indirectly affect the analysis of water samples. This review is a presentation of the state of the art of photocatalysis as a simple and effective technique for sample pretreatment in ultra-trace and speciation analysis and its critical as well as unpublished data related to this topic.
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Yu Y, Hu J, Zhao X, Liu J, Gao Y. Photochemical vapor generation for germanium: synergistic effect from cobalt/chloride ions and air-liquid interfaces. Anal Bioanal Chem 2022; 414:5709-5717. [PMID: 35604423 DOI: 10.1007/s00216-022-04126-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 04/22/2022] [Accepted: 05/10/2022] [Indexed: 11/26/2022]
Abstract
Photochemical vapor generation (PVG) of germanium (Ge) was first reported in this work. The synergistic effect from cobalt/chloride ions and air-liquid interfaces was found for the PVG of Ge. No obvious signal response was observed from the standard solution of Ge in 10% (v/v) formic acids (FAs) under UV irradiation. The addition of 300 mg L-1 of Co2+ and 30 mmol L-1 of Cl- resulted in enhanced photochemical reduction for Ge, and the introduction of air-liquid interfaces proceeding and succeeding the sample solution caused another 4.6 folds of enhancement in signal response of Ge. Under the selected condition, the limit of detection (LOD, 3σ, n = 11) was obtained to be 0.008 ng mL-1 with inductively coupled plasma mass spectrometry (ICP MS) measurement. A good precision, expressed as a relative standard deviation (RSD, n = 7) of 2.0%, was found from replicated measurements of 2 ng mL-1 of Ge. The generation efficiency was found to be no better than 9 ± 2%. The PVG mechanism of Ge was investigated in this work. The new finding is useful for understanding the principle of PVG, and further exploring the analytical and environmental application of PVG.
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Affiliation(s)
- Ying Yu
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Sichuan, 610059, China
| | - Jiaju Hu
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Sichuan, 610059, China
| | - Xinyi Zhao
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Sichuan, 610059, China
| | - Jiangchuan Liu
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Sichuan, 610059, China
| | - Ying Gao
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Sichuan, 610059, China.
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Hu J, Li C, Zhen Y, Chen H, He J, Hou X. Current advances of chemical vapor generation in non-tetrahydroborate media for analytical atomic spectrometry. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116677] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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9
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Ferreira SL, Cerda V, Portugal LA, Gonçalves LB, Santos Neto JH, Pereira Junior JB, Palacio E. State of the art of the methods proposed for selenium speciation analysis by CVG-AFS. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116617] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Dong L, Chen H, Ning Y, He Y, Yu Y, Gao Y. Vanadium Species-Assisted Photochemical Vapor Generation for Direct Detection of Trace Tellurium with Inductively Coupled Plasma Mass Spectrometry. Anal Chem 2022; 94:4770-4778. [PMID: 35274934 DOI: 10.1021/acs.analchem.1c05525] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Photochemical vapor generation (PVG) is emerging as an alternative sample introduction method in the field of atomic spectrometry. The addition of transition metals can largely improve the PVG yields of elements with the enhancement of 1.4 to 30 000-fold, based on previous reports. In this work, the use of vanadium species as novel "sensitizers" in PVG was first reported, tellurium (Te) was selected as the target. The efficient photochemical reduction of Te was observed in the presence of 9% (v/v) formic acid (FA), 20%(v/v) acetic acid (AA), and 40 mg L-1 of V(V) (existing as VO3-) with the conversion efficiency of 87 ± 3%. Under the selected conditions, there was no significant difference in analytical sensitivity between Te(IV) and Te(VI), making the direct detection of total Te possible. The limit of detection (LOD, 3σ) was 2.9 ng L-1 for Te with inductively coupled plasma mass spectrometry (ICP MS) measurement. Good precisions of 2.3% and 2.2% (relative standard deviations, RSD) for seven times replicate measurement of 0.5 μg L-1 Te(IV) and Te(VI) standard solutions were obtained. The sensitivity was enhanced about 55-fold compared to that using traditional direct solution nebulization. The method was applied for the determination of trace Te in three water samples and two certified reference materials of sediment with satisfactory results. The possible mechanism was investigated. The generation of volatile vanadium along with (CH3)2Te was found in PVG for the first time. The new findings in this work will be helpful for exploration of efficient "sensitizers" in PVG and further expanding the scope of elements amenable to PVG as well.
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Affiliation(s)
- Liang Dong
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Hanjiao Chen
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
| | - Yongyan Ning
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Yaowen He
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Ying Yu
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Ying Gao
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
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Luo J, Hu Z, Xu F, Geng D, Tang X. MIL-125-NH2 catalyzed photochemical vapor generation coupled with HPLC-ICPMS for speciation analysis of selenium. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107053] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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12
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Wang Z, Su W, Zheng H, Yang S, Yang T, Han T, Dessie W, He X, Jiang Y, Hao Y. Two phenanthroimidazole turn-on probes for the rapid detection of selenocysteine and its application in living cells imaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120585. [PMID: 34782266 DOI: 10.1016/j.saa.2021.120585] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/11/2021] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
Detection of selenocysteine (Sec) content in cells by fluorescence probe is of great significance for the identification of human related diseases. To achieve fast and sensitive detection of Sec, two isomers A4 and B4 as turn-on fluorescent probes to detect Sec were designed and synthesized. Both A4 and B4 display fast turn-on response, high selectivity and sensitivity toward Sec, which can be applied for fluorescence imaging of Sec in living cells. Compared with B4, A4 has a larger Stokes shift (125 nm), wider pH range (5-10) and lower detection limit (65.4 nM) due to its ESIPT (excited state intramolecular proton transfer) effect. In view of the detection performance of these two probes, they can be used as effective tools for detecting Sec in biological systems.
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Affiliation(s)
- Zongcheng Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources, Hunan University of Science and Engineering, Yongzhou 425199, China
| | - Weikang Su
- Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources, Hunan University of Science and Engineering, Yongzhou 425199, China
| | - Huihuang Zheng
- Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources, Hunan University of Science and Engineering, Yongzhou 425199, China
| | - Shun Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Tingting Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Ting Han
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Wubliker Dessie
- Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources, Hunan University of Science and Engineering, Yongzhou 425199, China
| | - Xingrui He
- Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources, Hunan University of Science and Engineering, Yongzhou 425199, China
| | - Yuren Jiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
| | - Yuanqiang Hao
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
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Zeng W, Hu Z, Luo J, Hou X, Jiang X. Highly sensitive determination of trace antimony in water samples by cobalt ion enhanced photochemical vapor generation coupled with atomic fluorescence spectrometry or ICP-MS. Anal Chim Acta 2022; 1191:339361. [PMID: 35033238 DOI: 10.1016/j.aca.2021.339361] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/05/2021] [Accepted: 12/06/2021] [Indexed: 11/28/2022]
Abstract
A method for highly sensitive determination of trace antimony was proposed by using cobalt ion enhanced photochemical vapor generation (PCVG) for sample introduction into atomic fluorescence spectrometry (AFS) or inductively coupled plasma-mass spectrometry (ICP-MS) for elemental detection. During the PCVG process, the sample introduction efficiency of Sb could be significantly improved by addition of 5 mg L-1 Co2+ in the mixed acid medium of 10% (v/v) formic acid and 20% (v/v) acetic acid, with a final 12-fold and 133-fold enhancement of AFS and ICP-MS intensity, respectively. The experimental conditions including enhancement ions, acid medium, UV irradiation, working gas as well as potential interference were investigated in detail. Under the optimal experimental conditions, the limit of detection (LOD) for Sb was 0.05 and 0.001 μg L-1 by using AFS and ICP-MS determination, respectively. The method was successfully used for analysis of real water samples, with satisfactory recoveries of 92-94%.
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Affiliation(s)
- Wen Zeng
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Zenghui Hu
- College of Architecture and Environment, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Jin Luo
- Analytical & Service Center of Sichuan Province, Chengdu, Sichuan, 610023, China
| | - Xiandeng Hou
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Xiaoming Jiang
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan, 610064, China.
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Cai JY, Liu S, Yu YL, Wang JH. MoS 2-Covalent Organic Framework Composite as a Bifunctional Supporter for the Determination of Trace Nickel by Photochemical Vapor Generation-Microplasma Optical Emission Spectrometry. Anal Chem 2022; 94:2288-2297. [PMID: 35043637 DOI: 10.1021/acs.analchem.1c05002] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A microplasma-based optical emission spectrometry (OES) system has emerged as a potential tool for field analysis of heavy metal pollution due to its features of portability and low energy consumption, while the development of an efficient sample introduction approach against matrix interference is crucial to meet the requirements of complex sample analysis. Herein, a MoS2-covalent organic framework (COF) composite serves as a bifunctional supporter for efficient sample separation/enrichment and photochemical vapor generation (PVG) enhancement, thereby achieving highly selective and sensitive detection of heavy metals in environmental water by dielectric barrier discharge (DBD) microplasma-OES. With trace nickel analysis as a model, the MoS2-COF composite with a large specific surface area and a porous structure can not only efficiently separate and enrich nickel ions from a sample matrix through electrostatic interaction and coordination to reduce the interference of coexisting ions but also significantly improve the subsequent PVG efficiency due to the formed heterojunction and more negative reduction potential. Under optimized conditions, a linear range of 0.1-10 μg L-1 along with a detection limit of 0.03 μg L-1 is obtained for nickel. Compared with direct PVG, the tolerance to coexisting ions is greatly enhanced, and the detection limit is also improved by 43-fold. The accuracy and practicability of the present PVG-DBD-OES system are verified by measuring several certified reference materials and real water samples. MoS2-COF as a bifunctional supporter promotes the performance of the PVG-DBD-OES system in terms of anti-interference ability and detection sensitivity, especially for robust and efficient on-site analysis of complex samples.
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Affiliation(s)
- Ji-Ying Cai
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Shuang Liu
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Yong-Liang Yu
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Jian-Hua Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
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Ali AG, Altahan MF, Beltagi AM, Hathoot AA, Abdel-Azzem M. Voltammetric and impedimetric determinations of selenium(iv) by an innovative gold-free poly(1-aminoanthraquinone)/multiwall carbon nanotube-modified carbon paste electrode. RSC Adv 2022; 12:4988-5000. [PMID: 35425500 PMCID: PMC8981389 DOI: 10.1039/d1ra07588h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 01/28/2022] [Indexed: 11/21/2022] Open
Abstract
Selenite (Se4+), a significant source of water pollution above the permissible limits, is considered a valuable metal by environmentalists. In this study, we described a novel electrochemical sensor that utilized a carbon paste electrode (CPE) that was modified using multiwall carbon nanotubes (MWCNTs) and poly(1-aminoanthraquinone) (p-AAQ) for finding Se4+ in water samples. Electrochemical quantification of Se4+ depends on the formation of a selective complex (piaselenol) with p-AAQ. In this work, we prepared a CPE modified by physical embedding of MWCNTs and 1-aminoanthraquione (AAQ), while the polymer film was formed by anodic polymerization of AAQ by applying a constant potential of 0.75 V in 0.1 M HCl for 20 s followed by cyclic voltammetry (CV) from −0.2 to 1.4 V for 20 cycles. The modified CPE was used for differential pulse voltammetry (DPV) of Se4+ in 0.1 M H2SO4 from 0 to 0.4 V with a characteristic peak at 0.27 V. Further, the proposed sensor was characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy, and electrochemical impedance spectroscopy (EIS). The analytical conditions regarding the electrode performance and voltammetric measurements were optimized, with the accumulation time and potential, supporting electrolyte, differential-pulse period/time, and amplitude. The EIS results indicated that the p-AAQ/MWCNTs-modified CPE sensor (p-AAQ/MWCNTs/CPE) that also exhibited low charge-transfer resistance (Rct) toward the anodic stripping of Se4+, exhibited good analytical performance toward different concentrations of Se4+ in a linear range of 5–50 μg L−1 Se4+ with a limit of determination (LOD) of 1.5 μg L−1 (3σ). Furthermore, differential-pulse voltammetry was employed to determine different concentrations of Se4+ in a linear range of 1–50 μg L−1 Se4+, and an LOD value of 0.289 μg L−1 was obtained. The proposed sensor demonstrated good precision (relative standard deviation = 4.02%) at a Se4+ concentration of 5 μg L−1. Moreover, the proposed sensor was applied to analyze Se4+ in wastewater samples that were spiked with Se, and it achieved good recovery values. The selenite ion is quantified electrochemically by selective complexation with poly(1-aminoanthraquione) to give a piaselenol complex on a modified p-AAQ/MWCNTs/CPE sensor.![]()
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Affiliation(s)
- Asmaa Galal Ali
- Electrochemistry Laboratory, Chemistry Department, Faculty of Science, Menoufia University, Shibin El-Kom 32511, Egypt
| | - Mahmoud Fatehy Altahan
- Central Laboratory for Environmental Quality Monitoring, National Water Research Center, El-Qanater El-Khairia 13621, Egypt
| | - Amr Mohamed Beltagi
- Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt
| | - Abla Ahmed Hathoot
- Electrochemistry Laboratory, Chemistry Department, Faculty of Science, Menoufia University, Shibin El-Kom 32511, Egypt
| | - Magdi Abdel-Azzem
- Electrochemistry Laboratory, Chemistry Department, Faculty of Science, Menoufia University, Shibin El-Kom 32511, Egypt
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16
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LeBlanc KL, Mester Z. Compilation of selenium metabolite data in selenized yeasts. Metallomics 2021; 13:6307519. [PMID: 34156080 DOI: 10.1093/mtomcs/mfab031] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 04/30/2021] [Indexed: 11/12/2022]
Abstract
Selenium-enriched yeast has long been recognized as an important nutritional source of selenium and studies have suggested that supplementation with this material provides chemo-preventative benefits beyond those observed for selenomethionine supplementation, despite the fact that selenomethionine accounts for 60-84% of the total selenium in selenized yeasts. There is much ongoing research into the characterization of the species comprising the remaining 16-40% of the selenium, with nearly 100 unique selenium-containing metabolites identified in aqueous extracts of selenized yeasts (Saccharomyces cerevisiae). Herein, we discuss the analytical approaches involved in the identification and quantification of these metabolites, and present a recently created online database (DOI: 10.4224/40001921) of reported selenium species along with chemical structures and unique mass spectral features.
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Affiliation(s)
- Kelly L LeBlanc
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada
| | - Zoltán Mester
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada
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17
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Yu Y, Chen H, Zhao Q, Mou Q, Dong L, Wang R, Shi Z, Gao Y. Impact of Gas-Liquid Interface on Photochemical Vapor Generation. Anal Chem 2021; 93:3343-3352. [PMID: 33566589 DOI: 10.1021/acs.analchem.9b05634] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Interfacial effect has attracted increasing interest as the inherent asymmetric environment of a gas-liquid interface leads to different chemical and physical properties between this region and the bulk phase, resulting in enhanced chemical processes, specific reactions, and mass transfer at the interface. Photochemical vapor generation (PVG) is regarded as a simple and green sample introduction method in atomic spectrometry. However, the photochemical behavior of elements with the interface is not known. Herein, we report the PVG of elements at the gas-liquid interface along with a possible mechanism investigated for the first time. Enhancement and/or suppression effects from the gas-liquid interface were observed on the PVG of 17 elements, which was correlated with the properties of analytes and the generated intermediate substances/products of PVG and the applied conditions. Enhancement from 1.1- to 7.3-fold in analytical sensitivity was found for 12 elements in the system with gas-liquid interface(s) compared to the results obtained in previous reports of PVG using traditional flow injection with inductively coupled plasma mass spectrometry measurement. The introduction of gas-liquid interface(s) and the resultant elevated temperature inside the PVG reactor likely facilitated the generation of radicals, the subsequent radical-based reactions, and the separation/transport/detection of volatile species of elements. In contrast, intermediate substances/products generated in PVG with poor thermostability will readily decompose at elevated temperatures, leading to a decreased signal response of analytes. The finding is helpful to understand the transport of elements under UV irradiation in the environment and has potential for analysis of trace elements in environmental and biological samples.
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Affiliation(s)
- Ying Yu
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Hanjiao Chen
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
| | - Qian Zhao
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Qing Mou
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Liang Dong
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Ruilin Wang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Zeming Shi
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Ying Gao
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
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18
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Li M, Luo Y, Zou Z, Xu F, Jiang X, Hou X. A miniaturized UV-LED array chip-based photochemical vapor generator coupled with a point discharge optical emission spectrometer for the determination of trace selenium. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 2021. [DOI: 10.1039/d1ja00290b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Ultraviolet light emitting diode array chip-based photochemical vapor generation was combined with hollow electrode point discharge to establish a miniaturized optical emission spectrometer for efficient vapor generation and excitation of selenium.
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Affiliation(s)
- Mengtian Li
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610041, China
| | - Yi Luo
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Zhirong Zou
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
| | - Fujian Xu
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610041, China
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
| | - Xiaoming Jiang
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
| | - Xiandeng Hou
- College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
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19
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Wang Z, Zheng H, Zhang C, Tang D, Wu Q, Dessie W, Jiang Y. A Red Emissive Fluorescent Turn-on Sensor for the Rapid Detection of Selenocysteine and Its Application in Living Cells Imaging. SENSORS 2020; 20:s20174768. [PMID: 32846934 PMCID: PMC7506812 DOI: 10.3390/s20174768] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 08/18/2020] [Accepted: 08/22/2020] [Indexed: 12/25/2022]
Abstract
The content of selenocysteine in cells has an important effect on a variety of human diseases, and the detection of selenocysteine by fluorescent sensors in vivo has shown many advantages. In order to further develop fast-reaction-time, good-selectivity, and high-sensitivity long-wavelength selenocysteine fluorescent sensors, we designed and synthesized the compound YZ-A4 as a turn-on fluorescent sensor to detect the content of selenocysteine. The quantitative detection range of the sensor YZ-A4 to selenocysteine was from 0 to 32 μM, and the detection limit was as low as 11.2 nM. The sensor displayed a rapid turn-on response, good selectivity, and high sensitivity to selenocysteine. Finally, we have demonstrated that YZ-A4 could be used for fluorescence imaging of selenocysteine in living cells.
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Affiliation(s)
- Zongcheng Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; (Z.W.); (C.Z.); (Q.W.)
- College of Chemical and Biological Engineering, Hunan University of Science and Engineering, Yongzhou 425199, China; (H.Z.); (D.T.); (W.D.)
| | - Huihuang Zheng
- College of Chemical and Biological Engineering, Hunan University of Science and Engineering, Yongzhou 425199, China; (H.Z.); (D.T.); (W.D.)
| | - Chengliang Zhang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; (Z.W.); (C.Z.); (Q.W.)
| | - Dongfang Tang
- College of Chemical and Biological Engineering, Hunan University of Science and Engineering, Yongzhou 425199, China; (H.Z.); (D.T.); (W.D.)
| | - Qiyao Wu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; (Z.W.); (C.Z.); (Q.W.)
| | - Wubliker Dessie
- College of Chemical and Biological Engineering, Hunan University of Science and Engineering, Yongzhou 425199, China; (H.Z.); (D.T.); (W.D.)
| | - Yuren Jiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; (Z.W.); (C.Z.); (Q.W.)
- Correspondence:
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20
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Yang Y, Wang Y, Hou X, Lin Y, Yang L, Hou X, Zheng C. Can low-temperature point discharge Be used as atomic emission source for sensitive determination of cyclic volatile methylsiloxanes? Anal Chim Acta 2020; 1124:121-128. [PMID: 32534664 DOI: 10.1016/j.aca.2020.05.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 04/17/2020] [Accepted: 05/11/2020] [Indexed: 10/24/2022]
Abstract
Despite of increased interest in the application of miniature microplasma atomic spectrometry for environmental analytical chemistry, the amenable element detection range is limited to some metal elements and carbon due to it low power consumption. In this work, the generation of silicon atomic emission (251.6 nm and 288.2 nm) from the organosiloxanes was found possible in a low-temperature, low-power, and compact point discharge. Consequence, a tiny point discharge silicon optical emission spectrometer (μPD-OES) was exploited, and used as a novel GC detector for the determination of various cyclic volatile methyl siloxanes (cVMSs). Under the optimized conditions, the developed system provided limits of detection (LODs) of 0.2 mg L-1, 0.04 mg L-1, 0.03 mg L-1 and 0.02 mg L-1 of Si for hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane and dodecamethylcyclohexasiloxane, respectively. Meanwhile, relative standard deviations (RSDs) of better than 2.3% were obtained. In contrast to gas chromatography mass spectrometer, GC-μPD-OES significantly simplifies the experimental setup with low power consumption and a miniature configuration. As far as we know, this work reports for the first time that silicon atomic emission can be generated in such low temperature microplasma. The accuracy of this system was validated by determining cVMSs in five daily-used shampoo samples collected from retail store, providing satisfactory recoveries (84%-114%) and excellent agreement with values determined by GC-MS at the 95% confidence level.
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Affiliation(s)
- Yuan Yang
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Yao Wang
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Xiaoling Hou
- Chengdu Environmental Monitoring Center, Chengdu, Sichuan, 610072, China
| | - Yao Lin
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Lu Yang
- National Research Council Canada, Ottawa, Ontario, Canada, K1A 0R6
| | - Xiandeng Hou
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Chengbin Zheng
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China.
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21
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Liu Y, Feng X, Yu Y, Zhao Q, Tang C, Zhang J. A review of bioselenol-specific fluorescent probes: Synthesis, properties, and imaging applications. Anal Chim Acta 2020; 1110:141-150. [PMID: 32278389 DOI: 10.1016/j.aca.2020.03.027] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 03/12/2020] [Accepted: 03/12/2020] [Indexed: 01/25/2023]
Abstract
Bioselenols are important substances for the maintenance of physiological balance and offer anticancer properties; however, their causal mechanisms and effectiveness have not been assessed. One way to explore their physiological functions is the in vivo detection of bioselenols at the molecular level, and one of the most efficient ways to do so is to use fluorescent probes. Various types of bioselenol-specific fluorescent probes have been synthesized and optimized using chemical simulations and by improving biothiol fluorescent probes. Here, we review recent advances in bioselenol-specific fluorescent probes for selenocysteine (Sec), thioredoxin reductase (TrxR), and hydrogen selenide (H2Se). In particular, the molecular design principles of different types of bioselenols, their corresponding sensing mechanisms, and imaging applications are summarized.
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Affiliation(s)
- Yuning Liu
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Xiaohui Feng
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Yanan Yu
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Qingyu Zhao
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Chaohua Tang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Junmin Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
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22
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Altunay N, Elik A, Kaya S. Alcohol-DES based vortex assisted homogenous liquid-liquid microextraction approach for the determination of total selenium in food samples by hydride generation AAS: Insights from theoretical and experimental studies. Talanta 2020; 215:120903. [PMID: 32312448 DOI: 10.1016/j.talanta.2020.120903] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 03/02/2020] [Accepted: 03/05/2020] [Indexed: 01/10/2023]
Abstract
This research article proposes a simple, quick, green and cheap approach for the determination of total selenium in food samples using alcohol-DES based vortex-assisted homogenous liquid-liquid microextraction (alcohol-DES-VA-HLLME) combination with hydride generation atomic absorption spectrometry (HG AAS). Analyte, complexing agent and working pH were Se(IV), Sudan-II and pH 4.0, respectively. In order to analyze the nature of the chemical interaction between Se(IV) ion and Sudan-II ligand, experimental results were supported with computational chemistry tools calculating quantum chemical descriptors like frontier orbital energies, hardness, softness, electronegativity, electrophilicity, nucleophilicity, transferred electron from the ligand to ion, electron donating power, electron accepting power, complexation energy, molecule-ion interaction energy. In addition, the alcohol-DES-VA-HLLME method was earned a good detection limit of 3.5 ng L-1 and a wide calibration curve in the concentration range of 12-300 ng L-1 (r: 0.9981). The validity of the method was evaluated by analyzing the two standard reference material (SRMs). The recoveries and relative standard deviations for 25 and 100 ng L-1 of Se(IV) (N:5) were in the range of 1.2-2.5% and 92.1-103.7% respectively, which proved acceptable. The analytical results showed that the proposed method had important features such as cheapness, green, quick extraction and reuse, which made it attractive for the determination and efficient extraction of total selenium in the food samples.
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Affiliation(s)
- Nail Altunay
- Sivas Cumhuriyet University, Faculty of Sciences, Department of Biochemistry, TR-58140, Sivas, Turkey.
| | - Adil Elik
- Sivas Cumhuriyet University, Faculty of Sciences, Department of Chemistry, TR-58140, Sivas, Turkey
| | - Savaş Kaya
- Sivas Cumhuriyet University, Health Services Vocational School, Department of Pharmacy, TR 58140, Sivas, Turkey
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23
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Zou Z, Hu J, Xu F, Hou X, Jiang X. Nanomaterials for photochemical vapor generation-analytical atomic spectrometry. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.03.012] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Jia Y, Mou Q, Yu Y, Shi Z, Huang Y, Ni S, Wang R, Gao Y. Reduction of Interferences Using Fe-Containing Metal–Organic Frameworks for Matrix Separation and Enhanced Photochemical Vapor Generation of Trace Bismuth. Anal Chem 2019; 91:5217-5224. [DOI: 10.1021/acs.analchem.8b05893] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yutao Jia
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Qing Mou
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Ying Yu
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Zeming Shi
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Yi Huang
- Institute of Environment, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Shijun Ni
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Ruilin Wang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Ying Gao
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
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25
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Ding Y, Liu Y, Chen Y, Huang Y, Gao Y. Photochemical Vapor Generation for Colorimetric Speciation of Inorganic Selenium. Anal Chem 2019; 91:3508-3515. [PMID: 30719906 DOI: 10.1021/acs.analchem.8b05117] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Gold nanoparticles (AuNPs) are widely used as optical probes in colorimetric detection, thanks to their high molar extinction coefficient. However, sample matrixes of high salinity or strong acidity/alkalinity often break the electrostatic repulsion of AuNPs suspension, or/and the surface functionality of AuNPs, causing strong and unfavorable interferences. Photochemical vapor generation (PVG) is an efficient technique for the sample matrix separation. Besides, it possesses distinct features of green reducing reagent, reduced interferences from concomitant elements, and direct speciation by the assistance of photocatalyst. Herein, we developed a photochemical vapor generation (PVG) method for the green and direct speciation analysis of inorganic selenium (i.e., Se(IV) and Se(VI)), by colorimetric or visual monitoring of unmodified AuNPs. The generated Se species from PVG were directed into the AuNPs solution for a reaction to take place, which produced a specific new absorption band at 600 nm for detection. The experimental parameters, including the concentration of organic acid, the sample flow rate, the concentration of AuNPs, and the flow rate of carries gas, were optimized in detail. Under optimized conditions, the limits of detection (LOD) for Se(IV) and Se(VI) were 0.007 and 0.006 μg mL-1 by UV-vis detection, respectively. It is worth mentioning that 0.08 μg mL-1 Se can induce an obvious color change, which can be directly observed with the naked eye. Relative standard deviations (RSDs) of 4.5% and 4.3% were obtained from seven replicate measurements of 0.15 μg mL-1 Se(IV) and Se(VI) standard solution, respectively. The developed assay has been successfully applied for the speciation of Se in a dietary supplement sample and environmental water samples including lake water, seawater, simulated water reference materials, and tap water.
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26
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Yu Y, Jia Y, Shi Z, Chen Y, Ni S, Wang R, Tang Y, Gao Y. Enhanced Photochemical Vapor Generation for the Determination of Bismuth by Inductively Coupled Plasma Mass Spectrometry. Anal Chem 2018; 90:13557-13563. [PMID: 30345736 DOI: 10.1021/acs.analchem.8b03681] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An enhanced photochemical vapor generation (PVG) sample introduction procedure is developed for the determination of trace Bi with inductively coupled plasma mass spectrometry (ICP MS) by the addition of iron. Gas chromatography mass spectrometry (GC-MS) reveals that (CH3)3Bi is the major component of the volatile Bi species formed in the presence of 20% (v/v) acetic acid, 5% (v/v) formic acid, and 60 μg mL-1 Fe3+ under UV irradiation. The addition of Fe3+ not only largely increases the PVG efficiency of Bi3+ but also accelerates the reaction kinetics of photochemical reduction of Bi3+. The analytical sensitivity was enhanced 30-fold using PVG for sample introduction compared to that for direct solution nebulization detection by ICP MS detection. Furthermore, the proposed method shows much better tolerance of interference from Cu2+ and Ni2+ than that from conventional hydride generation (HG). Under the optimized conditions, a detection limit of 0.3 ng L-1 was obtained for Bi by ICP MS determination. The relative standard deviation (RSD) was 2.5% for seven replicate measurements of 0.5 ng mL-1 Bi3+ standard solution. The proposed method has been successfully applied for the determination of Bi in environmental samples, including water samples, and certified reference material of soil (GSS-1) and sediments (GSD-5a and GSD-10) with satisfying results.
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Affiliation(s)
- Ying Yu
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection , Chengdu University of Technology , Sichuan 610059 , China.,College of Earth Sciences , Chengdu University of Technology , Sichuan 610059 , China
| | - Yutao Jia
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection , Chengdu University of Technology , Sichuan 610059 , China.,College of Earth Sciences , Chengdu University of Technology , Sichuan 610059 , China
| | - Zeming Shi
- College of Earth Sciences , Chengdu University of Technology , Sichuan 610059 , China
| | - Youliang Chen
- College of Earth Sciences , Chengdu University of Technology , Sichuan 610059 , China
| | - Shijun Ni
- College of Earth Sciences , Chengdu University of Technology , Sichuan 610059 , China
| | - Ruilin Wang
- College of Materials and Chemistry & Chemical Engineering , Chengdu University of Technology , Sichuan 610059 , China
| | - Yurong Tang
- College of Materials and Chemistry & Chemical Engineering , Chengdu University of Technology , Sichuan 610059 , China
| | - Ying Gao
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection , Chengdu University of Technology , Sichuan 610059 , China.,College of Earth Sciences , Chengdu University of Technology , Sichuan 610059 , China
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27
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He H, Peng X, Yu Y, Shi Z, Xu M, Ni S, Gao Y. Photochemical Vapor Generation of Tellurium: Synergistic Effect from Ferric Ion and Nano-TiO 2. Anal Chem 2018; 90:5737-5743. [PMID: 29611418 DOI: 10.1021/acs.analchem.8b00022] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Photochemical vapor generation (PVG) is emerging as a promising analytical tool for Te determination, thanks to its efficient matrix separation, and simple and green procedure. However, the low PVG generation efficiency of Te is the bottleneck for its wide application in environmental samples containing trace Te. Herein, we reported a high efficient PVG for Te determination by synergistic effect of ferric ion and nano-TiO2. The analytical sensitivity was enhanced approximately 15-fold for Te(IV) in the presence of both ferric ions and nano-TiO2, comparing to conventional PVG. Besides, the use of nano-TiO2 can provide Te(VI) and Te(IV) an equal and high PVG efficiency in the presence of ferric ions, owned to the high photocatalytic performance of TiO2 under short-wavelength UV irradiation (254 and 185 nm). Under the optimized experimental conditions, a detection limit of 1.0 ng L-1 was obtained. The precision of replicate measurements was 2.3% (RSD, n = 7) at 0.5 μg L-1 for Te(IV). The methodology was validated by successful determination of Te in surface waters and two standard reference sediment samples. To our best knowledge, this is the first report of the synergistic enhancement of transitional metal ions and nano-TiO2 in PVG, which possesses potential for highly sensitive determination of vapor-forming elements.
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Xu F, Zou Z, He J, Li M, Xu K, Hou X. In situ formation of nano-CdSe as a photocatalyst: cadmium ion-enhanced photochemical vapour generation directly from Se(vi). Chem Commun (Camb) 2018; 54:4874-4877. [DOI: 10.1039/c8cc01513a] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The in situ formation of nano-CdSe as a photocatalyst enhances the efficiency of the photochemical generation of gaseous Se-containing species.
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Affiliation(s)
- Fujian Xu
- Analytical & Testing Centre
- Sichuan University
- Chengdu
- China
| | - Zhirong Zou
- Analytical & Testing Centre
- Sichuan University
- Chengdu
- China
| | - Juan He
- College of Chemistry
- Key Laboratory of Green Chemistry and Technology of MOE at Sichuan University
- Chengdu
- China
| | - Mengtian Li
- College of Chemistry
- Key Laboratory of Green Chemistry and Technology of MOE at Sichuan University
- Chengdu
- China
| | - Kailai Xu
- College of Chemistry
- Key Laboratory of Green Chemistry and Technology of MOE at Sichuan University
- Chengdu
- China
| | - Xiandeng Hou
- Analytical & Testing Centre
- Sichuan University
- Chengdu
- China
- College of Chemistry
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29
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Nano g-C3N4/TiO2 composite: A highly efficient photocatalyst for selenium (VI) photochemical vapor generation for its ultrasensitive AFS determination. Microchem J 2017. [DOI: 10.1016/j.microc.2017.09.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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30
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A systematic review and meta-analysis of voltammetric and optical techniques for inorganic selenium determination in water. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.07.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Flow Injection Photochemical Vapor Generation Coupled with Miniaturized Solution-Cathode Glow Discharge Atomic Emission Spectrometry for Determination and Speciation Analysis of Mercury. Anal Chem 2017; 89:10353-10360. [DOI: 10.1021/acs.analchem.7b02214] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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32
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Lin CH, Chen Y, Su YA, Luo YT, Shih TT, Sun YC. Nanocomposite-Coated Microfluidic-Based Photocatalyst-Assisted Reduction Device To Couple High-Performance Liquid Chromatography and Inductively Coupled Plasma-Mass Spectrometry for Online Determination of Inorganic Arsenic Species in Natural Water. Anal Chem 2017; 89:5891-5899. [PMID: 28459544 DOI: 10.1021/acs.analchem.7b00247] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
To selectively and sensitively determine the trace inorganic As species, As(III) and As(V), we developed a nanocomposite-coated microfluidic-based photocatalyst-assisted reduction device (PCARD) as a vapor generation (VG) device to couple high-performance liquid chromatography (HPLC) separation and inductively coupled plasma-mass spectrometry (ICPMS) detection. Au nanoparticles were deposited on TiO2 nanoparticles to strengthen the conversion efficiency of the nanocomposite photocatalytic reduction. The sensitivity for As was significantly enhanced by employing the nanocomposite photocatalyst and using prereduction and signal-enhancement reagents. Under the optimal operating conditions, the analytical detection limits (based on 3σ) of the proposed online HPLC/nanocomposite-coated microfluidic-based PCARD/ICPMS system for As(III) and As(V) were 0.23 and 0.34 μg·L-1, respectively. The results were validated using a certified reference material (NIST SRM 1643e) and groundwater sample analysis, indicating the good reliability and applicability of our proposed system for the determination of inorganic As species in natural fresh water.
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Affiliation(s)
- Cheng-Hsing Lin
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University , Hsinchu 30013, Taiwan
| | - Yu Chen
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University , Hsinchu 30013, Taiwan
| | - Yi-An Su
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University , Hsinchu 30013, Taiwan
| | - Yu-Ting Luo
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University , Hsinchu 30013, Taiwan
| | - Tsung-Ting Shih
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University , Hsinchu 30013, Taiwan
| | - Yuh-Chang Sun
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University , Hsinchu 30013, Taiwan
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33
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Visible light photochemical vapor generation using metal-free g-C 3 N 4 /CQDs composites as catalyst: Selective and ultrasensitive detection of mercury by ICP-MS. Microchem J 2017. [DOI: 10.1016/j.microc.2017.02.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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34
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Amine-functionalized titanium metal organic framework for photochemical vapor generation for determination of selenium by inductively coupled plasma optical emission spectrometry. Microchem J 2017. [DOI: 10.1016/j.microc.2017.02.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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35
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Gao Y, Li S, He H, Li T, Yu T, Liu R, Ni S, Shi Z. Sensitive determination of osmium in natural waters by inductively coupled plasma mass spectrometry after photochemical vapor generation. Microchem J 2017. [DOI: 10.1016/j.microc.2016.09.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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36
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Tu J, Zeng X, Xu F, Wu X, Tian Y, Hou X, Long Z. Microwave-induced fast incorporation of titanium into UiO-66 metal–organic frameworks for enhanced photocatalytic properties. Chem Commun (Camb) 2017; 53:3361-3364. [DOI: 10.1039/c7cc00076f] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A microwave-assisted method was developed to incorporate Ti into UiO-66(Zr) to obtain a bimetallic MOF with enhanced photocatalytic performance.
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Affiliation(s)
- Jiping Tu
- Department of Chemistry
- Sichuan University
- Chengdu 610064
- China
| | - Xiaoliang Zeng
- Department of Chemistry
- Sichuan University
- Chengdu 610064
- China
| | - Fujian Xu
- Analytical & Testing Centre
- Sichuan University
- Chengdu 610064
- China
| | - Xi Wu
- Analytical & Testing Centre
- Sichuan University
- Chengdu 610064
- China
| | - Yunfei Tian
- Analytical & Testing Centre
- Sichuan University
- Chengdu 610064
- China
| | - Xiandeng Hou
- Department of Chemistry
- Sichuan University
- Chengdu 610064
- China
- Analytical & Testing Centre
| | - Zhou Long
- Analytical & Testing Centre
- Sichuan University
- Chengdu 610064
- China
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37
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Sen BK, Tiwari S, Deb MK, Pervez S. Determination of Selenium by Single-Drop Microextraction and Diffuse Reflectance Infrared Spectroscopy. ANAL LETT 2016. [DOI: 10.1080/00032719.2016.1229786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Bhupendra K. Sen
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur, India
| | - Swapnil Tiwari
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur, India
| | - Manas K. Deb
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur, India
| | - Shamsh Pervez
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur, India
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38
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Wang LH, Shan XE. Electrochemical reduction of selenium on a silver electrode and its determination in river water. JOURNAL OF ANALYTICAL CHEMISTRY 2016. [DOI: 10.1134/s1061934816090161] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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39
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Determination of As by UV-photochemical generation of its volatile species with AAS detection. MONATSHEFTE FUR CHEMIE 2016. [DOI: 10.1007/s00706-016-1808-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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40
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41
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UV-photochemical vapor generation with quartz furnace atomic absorption spectrometry for simple and sensitive determination of selenium in dietary supplements. Microchem J 2016. [DOI: 10.1016/j.microc.2015.10.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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42
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Parallel microscope-based fluorescence, absorbance and time-of-flight mass spectrometry detection for high performance liquid chromatography and determination of glucosamine in urine. Talanta 2015; 144:275-82. [DOI: 10.1016/j.talanta.2015.06.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Revised: 06/03/2015] [Accepted: 06/07/2015] [Indexed: 11/23/2022]
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43
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Zhang S, Luo H, Peng M, Tian Y, Hou X, Jiang X, Zheng C. Determination of Hg, Fe, Ni, and Co by Miniaturized Optical Emission Spectrometry Integrated with Flow Injection Photochemical Vapor Generation and Point Discharge. Anal Chem 2015; 87:10712-8. [PMID: 26435073 DOI: 10.1021/acs.analchem.5b02820] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A compact and robust OES technique was developed for the sensitive determination of Hg, Fe, Ni, and Co by utilizing photochemical vapor generation and point discharge as the sampling technique and the excitation source, respectively. Mercury cold vapor and the volatile species of Fe, Ni, and Co were generated when standard or sample solutions containing formic acid were exposed to a UV photochemical reactor and subsequently separated from the liquid phase for transport to the microplasma and detection of their atomic emission. Limits of detection (LODs) of 0.10, 10, 0.20, and 4.5 μg L(-1) were obtained for Hg, Fe, Ni and Co, respectively. Compared to conventional microplasma OES, this method not only broadens the scope of elements amenable to determination, but also provides 2- and 7-fold improvement in the LODs for Hg and Ni, respectively. Method validation was demonstrated by analysis of three Certified Reference Materials (GBW08607, DORM-3, and DORM-4) with satisfactory results, and by good spike recoveries (93-111%) from three real water samples.
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Affiliation(s)
- Shu Zhang
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University , Chengdu, Sichuan 610064, China
| | - Hong Luo
- Analytical & Testing Center, Sichuan University , Chengdu, Sichuan 610064, China
| | - Mengting Peng
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University , Chengdu, Sichuan 610064, China
| | - Yunfei Tian
- Analytical & Testing Center, Sichuan University , Chengdu, Sichuan 610064, China
| | - Xiandeng Hou
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University , Chengdu, Sichuan 610064, China.,Analytical & Testing Center, Sichuan University , Chengdu, Sichuan 610064, China
| | - Xiaoming Jiang
- Analytical & Testing Center, Sichuan University , Chengdu, Sichuan 610064, China
| | - Chengbin Zheng
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University , Chengdu, Sichuan 610064, China
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44
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XU M, YANG LM, WANG QQ. Se-Hg Dual-element Labeling Strategy for Selectively Recognizing Selenoprotein and Selenopeptide. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2015. [DOI: 10.1016/s1872-2040(15)60852-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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45
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Gil RA, Pacheco PH, Cerutti S, Martinez LD. Vapor generation – atomic spectrometric techniques. Expanding frontiers through specific-species preconcentration. A review. Anal Chim Acta 2015; 875:7-21. [DOI: 10.1016/j.aca.2014.12.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 12/09/2014] [Accepted: 12/17/2014] [Indexed: 12/21/2022]
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46
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Liu Y, He M, Chen B, Hu B. Simultaneous speciation of inorganic arsenic, selenium and tellurium in environmental water samples by dispersive liquid liquid microextraction combined with electrothermal vaporization inductively coupled plasma mass spectrometry. Talanta 2015; 142:213-20. [PMID: 26003714 DOI: 10.1016/j.talanta.2015.04.050] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 04/15/2015] [Accepted: 04/17/2015] [Indexed: 10/23/2022]
Abstract
A new method based on dispersive liquid liquid microextraction (DLLME) combined with electrothermal vaporization inductively coupled plasma mass spectrometry (ETV-ICP-MS) was developed for the simultaneous speciation of inorganic arsenic (As), selenium (Se) and tellurium (Te) with sodium diethyldithiocarbamate (DDTC) as both chelating reagent and chemical modifier. As(III), Se(IV) and Te(IV) were transformed into DDTC-chelates at pH 7 and extracted into the fine droplets formed by injecting the binary solution of bromobenzene (extraction solvent) and methanol (dispersive solvent) into the sample solution. After phase separation by centrifugation, As(III), Se(IV) and Te(IV) preconcentrated in the organic phase were determined by ETV-ICP-MS. Total inorganic As, Se and Te were obtained by reducing As(V), Se(VI) and Te(VI) to As(III), Se(IV) and Te(IV) with L-cysteine, which were then subjected to the same DLLME-ETV-ICP-MS process. The concentration of As(V), Se(VI), Te(VI) were calculated by subtracting the concentration of As(III), Se(IV) and Te(IV) from the total inorganic As, Se and Te, respectively. The main factors affecting the microextraction efficiency and the vaporization behavior of target species were investigated in detail. Under the optimal conditions, the limits of detection were 2.5, 8.6 and 0.56 ng L(-1) for As(III), Se(IV) and Te(IV), respectively, with the relative standard deviations (n=7) of 8.5-9.7%. The developed method was applied to the speciation of inorganic As, Se and Te in Certified Reference Materials of GSBZ50004-88, GBW(E)080395 and GBW(E)080548 environmental waters, and the determined values are in good agreement with the certified values. The method was also successfully applied to the simultaneous speciation of inorganic As, Se and Te in different environmental water samples with the recoveries in the range of 86.3-107% for the spiked samples.
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Affiliation(s)
- Ying Liu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, PR China
| | - Man He
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, PR China
| | - Beibei Chen
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, PR China
| | - Bin Hu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, PR China.
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47
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Gao Y, Xu M, Sturgeon RE, Mester Z, Shi Z, Galea R, Saull P, Yang L. Metal Ion-Assisted Photochemical Vapor Generation for the Determination of Lead in Environmental Samples by Multicollector-ICPMS. Anal Chem 2015; 87:4495-502. [DOI: 10.1021/acs.analchem.5b00533] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ying Gao
- Chemical
Metrology, Measurement Science and Standards, National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada
- State
Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, Sichuan 610059, China
- College
of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Mo Xu
- State
Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Ralph E. Sturgeon
- Chemical
Metrology, Measurement Science and Standards, National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Zoltán Mester
- Chemical
Metrology, Measurement Science and Standards, National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Zeming Shi
- College
of Earth Sciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Raphael Galea
- Ionizing
Radiation Standards, Measurement Science and Standards, National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Patrick Saull
- Ionizing
Radiation Standards, Measurement Science and Standards, National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Lu Yang
- Chemical
Metrology, Measurement Science and Standards, National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada
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48
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Wang Y, Xu K, Jiang X, Hou X, Zheng C. Dual-mode chemical vapor generation for simultaneous determination of hydride-forming and non-hydride-forming elements by atomic fluorescence spectrometry. Analyst 2014; 139:2538-44. [DOI: 10.1039/c4an00066h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A dual-mode chemical vapor generation system was developed for simultaneous multi-element analysis of hydride-forming and non-hydride-forming elements.
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Affiliation(s)
- Yu Wang
- Key Laboratory of Green Chemistry & Technology of MOE
- College of Chemistry
- Sichuan University
- Chengdu, China
| | - Kailai Xu
- Key Laboratory of Green Chemistry & Technology of MOE
- College of Chemistry
- Sichuan University
- Chengdu, China
| | - Xiaoming Jiang
- Analytical & Testing Center
- Sichuan University
- Chengdu, China
| | - Xiandeng Hou
- Key Laboratory of Green Chemistry & Technology of MOE
- College of Chemistry
- Sichuan University
- Chengdu, China
- Analytical & Testing Center
| | - Chengbin Zheng
- Key Laboratory of Green Chemistry & Technology of MOE
- College of Chemistry
- Sichuan University
- Chengdu, China
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49
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Preconcentration and in-situ photoreduction of trace selenium using TiO2 nanoparticles, followed by its determination by slurry photochemical vapor generation atomic fluorescence spectrometry. Mikrochim Acta 2013. [DOI: 10.1007/s00604-013-1101-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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50
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Shih TT, Lin CH, Hsu IH, Chen JY, Sun YC. Development of a Titanium Dioxide-Coated Microfluidic-Based Photocatalyst-Assisted Reduction Device to Couple High-Performance Liquid Chromatography with Inductively Coupled Plasma-Mass Spectrometry for Determination of Inorganic Selenium Species. Anal Chem 2013; 85:10091-8. [DOI: 10.1021/ac400934e] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tsung-Ting Shih
- Department
of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 30013 Hisnchu, Taiwan
| | - Cheng-Hsing Lin
- Department
of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 30013 Hisnchu, Taiwan
| | - I-Hsiang Hsu
- Center for Measurement Standards, Industrial Technology Research Institute, 30011 Hsinchu, Taiwan
| | - Jian-Yi Chen
- Department
of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 30013 Hisnchu, Taiwan
| | - Yuh-Chang Sun
- Department
of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, 30013 Hisnchu, Taiwan
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