1
|
Gao YY, Yang XA, Zhang WB. High sensitivity atomic fluorescence spectroscopy for the detection of As III by selective electrolysis of arsenic on nanoflowers-like Fe/NFE. Talanta 2024; 275:126127. [PMID: 38663073 DOI: 10.1016/j.talanta.2024.126127] [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: 02/08/2024] [Revised: 04/09/2024] [Accepted: 04/17/2024] [Indexed: 05/30/2024]
Abstract
Modified electrosynthetic sample introduction technique is a reliable means of solving the problem of high sensitivity analysis of trace arsenite. This article attempts to achieve selective electroreduction of AsIII through the construction of electrode surfaces with different structures and materials from the perspective of interface reactions. Among the four transition metal modifiers, the iron modified nickel foam electrode with nano-flower structure documented higher efficiency in inducing arsenic reduction and better species selectivity. Systematic electrochemical and spectroscopic tests suggest that strong adsorption effect between Fe and AsIII, appropriate hydrogen evolution potential, and catalytic activity jointly promote efficient electroreduction of AsIII. Optimization based on electrode materials and electrolysis conditions, with high sensitivity, wide linear range (0.1-50 μg L-1), and excellent species selectivity, this paper offers an efficient and economic sample introduction method for trace AsIII/V selective atomic spectroscopy direct determination.
Collapse
Affiliation(s)
- Ying-Ying Gao
- Department of Applied Chemistry, Anhui University of Technology, Maanshan, Anhui, 243002, PR China
| | - Xin-An Yang
- Department of Applied Chemistry, Anhui University of Technology, Maanshan, Anhui, 243002, PR China
| | - Wang-Bing Zhang
- Department of Applied Chemistry, Anhui University of Technology, Maanshan, Anhui, 243002, PR China.
| |
Collapse
|
2
|
Liu XN, Yang XA, Chu XF, Zhang WB. Highly sensitive analysis of trace germanium derived from the efficient electrosynthesis and spectral introduction of GeH 4 on foam electrode. Anal Chim Acta 2024; 1287:342130. [PMID: 38182352 DOI: 10.1016/j.aca.2023.342130] [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: 10/12/2023] [Revised: 11/30/2023] [Accepted: 12/09/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND The electrochemical hydride generation technology, which uses electrolysis instead of chemical reagents to generate reducing species to achieve gaseous transformation and sample introduction of the tested elements, has received widespread attention in the field of atomic spectroscopy due to its simple, economical, and green characteristics. However, limited by the effective area of the electrode, the introduction efficiency and spectral signal of most elements (e.g., germanium) in practical applications are lower than traditional chemical hydride generation. RESULTS In this paper, an efficient electrochemical hydride generation (EHG) method based on metal foam electrode for μg L-1 level germanium was constructed. Systematic electrochemical and spectral tests showed that the low charge transfer resistance and the high electrochemical activity of nickel-based foam electrodes jointly promoted the efficient electroreduction of Ge(IV). Besides, the porous network structure of the metal foam material improves the contact probability of reactants while reducing the gas-evolution effect caused by bubble accumulation. Interestingly, adequate reaction sites are crucial for the conversion of germanium, but large foam electrodes are not always compatible with analytical performance. After coupling atomic fluorescence spectroscopy, this new electrolysis method has been proven to be suitable for efficient conversion and quantitative detection of Ge over a wide concentration range (5-150 μg L-1). SIGNIFICANCE Our proposal to improve the electrosynthesis efficiency of germanane (GeH4) by using metal foam electrode is extremely effective for the detection of trace or ultra-trace germanium. The exploration of electrode material, structure, and especially effective area will also provide ideas for the establishment of highly sensitive analysis methods in the future.
Collapse
Affiliation(s)
- Xiao-Na Liu
- Department of Applied Chemistry, Anhui University of Technology, Maanshan, Anhui, 243002, PR China
| | - Xin-An Yang
- Department of Applied Chemistry, Anhui University of Technology, Maanshan, Anhui, 243002, PR China.
| | - Xiang-Feng Chu
- Department of Applied Chemistry, Anhui University of Technology, Maanshan, Anhui, 243002, PR China
| | - Wang-Bing Zhang
- Department of Applied Chemistry, Anhui University of Technology, Maanshan, Anhui, 243002, PR China.
| |
Collapse
|
3
|
Sadee BA, Galali Y, Zebari SMS. Toxicity, arsenic speciation and characteristics of hyphenated techniques used for arsenic determination in vegetables. A review. RSC Adv 2023; 13:30959-30977. [PMID: 37876652 PMCID: PMC10591994 DOI: 10.1039/d3ra05770d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 10/13/2023] [Indexed: 10/26/2023] Open
Abstract
Arsenic (As) speciation is an interesting topic because it is well recognized that the toxicity of this metalloid ultimately depends on its chemical form. More than 300 arsenicals exist naturally. However, As can be present in four oxidation states: As-III, As0, AsIII and AsV. Long-term exposure to As from different sources, such as anthropogenic processes, or water, fauna and flora contaminated with As, has put human health at risk for decades. There are many side-effects correlated with exposure to InAs species, such as skin problems, respiratory diseases, kidney problems, cardiovascular diseases and even cancer. There are different levels and types of As in foods, particularly in vegetables. Furthermore, different chemical methods and techniques have been developed. Therefore, this review focuses on the general properties of various approaches used to identify As species in vegetation samples published worldwide. This includes various approaches (different solvents and techniques) used to extract As species from the matrix. Then, versatile chromatographic and non-chromatographic systems to separate different forms of As are reviewed. Finally, the general properties of the most common instruments used to detect As species from samples of interest are listed.
Collapse
Affiliation(s)
- Bashdar Abuzed Sadee
- Department of Food Technology, College of Agricultural Engineering Sciences, Salahaddin University-Erbil KRG Iraq
- Department of Nutrition and Dietetics, Cihan University-Erbil Erbil Iraq
| | - Yaseen Galali
- Department of Food Technology, College of Agricultural Engineering Sciences, Salahaddin University-Erbil KRG Iraq
- Department of Nutrition and Dietetics, Cihan University-Erbil Erbil Iraq
| | - Salih M S Zebari
- Department of Nutrition and Dietetics, Cihan University-Erbil Erbil Iraq
- Department of Animal Resource, College of Agricultural Engineering Sciences, Salahaddin University-Erbil KRG Iraq
| |
Collapse
|
4
|
Cheng L, Yang XA, Liu XN, Zhang WB. A novel electrooxidation vapor generation technique for the direct analysis of trace Os in ore/water samples. Anal Chim Acta 2022; 1230:340378. [DOI: 10.1016/j.aca.2022.340378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/25/2022] [Accepted: 09/07/2022] [Indexed: 11/01/2022]
|
5
|
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]
|
6
|
Welna M, Szymczycha-Madeja A, Pohl P. Non-chromatographic Speciation of As by HG Technique-Analysis of Samples with Different Matrices. Molecules 2020; 25:molecules25214944. [PMID: 33114574 PMCID: PMC7663061 DOI: 10.3390/molecules25214944] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/23/2020] [Accepted: 10/24/2020] [Indexed: 01/04/2023] Open
Abstract
The applicability of the hydride generation (HG) sample introduction technique combined with different spectrochemical detection methods for non-chromatographic speciation of toxic As species, i.e., As(III), As(V), dimethylarsinate (DMA) and monomethylarsonate (MMA), in waters and other environmental, food and biological matrices is presented as a promising tool to speciate As by obviating chromatographic separation. Different non-chromatographic procedures along with speciation protocols reported in the literature over the past 20 year are summarized. Basic rules ensuring species selective generation of the corresponding hydrides are presented in detail. Common strategies and alternative approaches are highlighted. Aspects of proper sample preparation before analysis and the selection of adequate strategies for speciation purposes are emphasized.
Collapse
|
7
|
Highly efficient electrochemical gas reduction on a three-dimensional foam electrode: mechanism and application for the determination of hazardous mercury in complex matrix. Mikrochim Acta 2020; 187:517. [PMID: 32851503 DOI: 10.1007/s00604-020-04505-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 08/18/2020] [Indexed: 12/16/2022]
Abstract
For the first time a nickel foam electrode (NFE) is applied in the field of electrochemical vapor generation (EVG) to carry out the electrochemical vapor phase conversion of mercury. Systematical electrochemical and morphological research has demonstrated that the specific surface area of the NFE was several times larger than that of the metal/non-metal electrode with the same geometric size. At the same time, the 3D porous channel composed of multi-layer nickel wire ensures the full contact between reactant and interface. The evident enhancement of spectral signals on a Ni electrode (283%), compared with Pt (27%) and graphite (109%), confirmed that the NFE effectively enhances the yield of mercury reduction. The NFE exhibits low limit of detection (0.017 μg L-1) and a wide linear range (0.2-20 μg L-1) with recoveries of actual samples in the range 87.8-117% towards Hg2+. Although the NFE has no advantage in electronic transmission and catalytic performance, its excellent stability, especially anti-interference and other characteristics, is sufficient for the analysis of hazardous mercury in complex matrix including certified reference materials and real samples.
Collapse
|
8
|
Pan SZ, Jin CZ, Yang XA, Zhang WB. Ultrasound enhanced solid-phase extraction of ultra-trace arsenic on Fe3O4@AuNPs magnetic particles. Talanta 2020; 209:120553. [DOI: 10.1016/j.talanta.2019.120553] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 11/03/2019] [Accepted: 11/09/2019] [Indexed: 11/27/2022]
|
9
|
Cheng L, Yang XA, Shi MT, Zhang WB. Rapid extraction of arsenic species from traditional Chinese herbal by dual-frequency ultrasound-assisted enzymatic digestion prior to spectral analysis. J Chromatogr A 2020; 1619:460915. [PMID: 32008824 DOI: 10.1016/j.chroma.2020.460915] [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: 11/14/2019] [Revised: 01/18/2020] [Accepted: 01/22/2020] [Indexed: 01/06/2023]
Abstract
Considering the huge difference of biological toxicity, it is extremely significant to recognize the exact content of arsenic species in actual samples. In this paper, a novel pretreatment technique for the efficient extraction of arsenic species from herbal samples is developed by dual-frequency ultrasound-assisted enzymatic digestion (DUED). The preservation of arsenic original form, reduction of the actual analysis time, environmental friendliness and free-interference in subsequent detection make this method over the traditional method such as wet digestion, ashing and some solvent extraction technologies. The combination of DUED and atomic fluorescence spectrometry realize the speciation analysis of arsenic in traditional Chinese medicine. The optimizations of experimental parameters have been achieved, and the potential mechanism is discussed. The experimental data showed that cellulase is suitable for the digestion of herbal matrix than α-amylase and papain. Ultrasound can significantly increase the rate of enzymatic hydrolysis of biological molecules, especially under dual-frequency ultrasound irradiation. The highest relative extraction efficiency can be obtained by combining 40 kHz ultrasonic bath (UB) with 20 kHz ultrasonic probe (UP). Two certified reference materials [CRMs, GBW(E)090066 and GBW(E)090067] and four practical herbs were used to evaluate the accuracy and practicability of the method. Inorganic arsenic, including trivalent arsenic and pentavalent arsenic, was the main species in the four herbal samples.
Collapse
Affiliation(s)
- Lei Cheng
- Department of Applied Chemistry, Anhui University of Technology, Maanshan, Anhui, 243002, PR China
| | - Xin-An Yang
- Department of Applied Chemistry, Anhui University of Technology, Maanshan, Anhui, 243002, PR China.
| | - Meng-Ting Shi
- Department of Applied Chemistry, Anhui University of Technology, Maanshan, Anhui, 243002, PR China
| | - Wang-Bing Zhang
- Department of Applied Chemistry, Anhui University of Technology, Maanshan, Anhui, 243002, PR China.
| |
Collapse
|
10
|
Recent developments in determination and speciation of arsenic in environmental and biological samples by atomic spectrometry. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104312] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
11
|
Yang XA, Shi MT, Leng D, Zhang WB. Fabrication of a porous hydrangea-like Fe3O4@MnO2 composite for ultra-trace arsenic preconcentration and determination. Talanta 2018; 189:55-64. [DOI: 10.1016/j.talanta.2018.06.065] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 06/11/2018] [Accepted: 06/20/2018] [Indexed: 11/30/2022]
|
12
|
Shi MT, Yang XA, Qin LM, Zhang WB. Highly efficient electrocatalytic vapor generation of methylmercury based on the gold particles deposited glassy carbon electrode: A typical application for sensitive mercury speciation analysis in fish samples. Anal Chim Acta 2018; 1025:58-68. [DOI: 10.1016/j.aca.2018.04.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 04/20/2018] [Accepted: 04/21/2018] [Indexed: 11/26/2022]
|
13
|
Speciation of inorganic arsenic(III) and arsenic(V) by a facile dual-cloud point extraction coupled with inductively plasma-optical emission spectrometry. Talanta 2018; 181:265-270. [DOI: 10.1016/j.talanta.2017.12.083] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 11/30/2017] [Accepted: 12/27/2017] [Indexed: 12/21/2022]
|
14
|
Lukojko E, Talik E, Gagor A, Sitko R. Highly selective determination of ultratrace inorganic arsenic species using novel functionalized miniaturized membranes. Anal Chim Acta 2017; 1008:57-65. [PMID: 29420944 DOI: 10.1016/j.aca.2017.12.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 12/16/2017] [Indexed: 10/18/2022]
Abstract
A simple method for highly selective determination of trace and ultratrace arsenic ions, i.e. arsenite and arsenate, was developed. The method is based on new miniaturized membranes, 5 mm diameter and 4.4 mg weight, which are prepared by synthesis of amorphous silica coating on cellulose fibers followed by the modification with (3-mercaptopropyl)-trimethoxysilane. The batch adsorption experiments show that membranes have high selectivity toward arsenite in the presence of heavy metals and anions that usually exist in natural water. Arsenite can be quantitatively adsorbed at pH 1 from 50 mL sample within 60 min using the miniaturized membrane with maximum adsorption capacity of 60 mg g-1. The excellent adsorptive properties of membranes open the path to simple and selective determination of trace and ultratrace arsenite in water. Moreover, the membranes can be applied in the arsenic speciation due to their selectivity toward arsenite in the presence of arsenate. After adsorption, the arsenite retained onto the membrane is directly measured by energy-dispersive X-ray fluorescence spectrometry, avoiding elution step usually required in other spectroscopy techniques. The method is characterized by excellent enrichment factor of 972, detection limit of 0.045 ng mL-1 and can be successfully applied in analysis of high salinity water, which is difficult to analyze by other spectroscopy techniques. The proposed method is a solvent-free approach based on the use of miniaturized membranes as sorbent followed by the direct measurement using a low-power X-ray spectrometer without either elution step or gas consumption during measurement. It can be considered as environmentally friendly and meets the standards of green analytical chemistry principles.
Collapse
Affiliation(s)
- Ewa Lukojko
- University of Silesia, Institute of Chemistry, ul. Szkolna 9, 40-006 Katowice, Poland
| | - Ewa Talik
- University of Silesia, Institute of Physics, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - Anna Gagor
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław, Poland
| | - Rafal Sitko
- University of Silesia, Institute of Chemistry, ul. Szkolna 9, 40-006 Katowice, Poland.
| |
Collapse
|
15
|
Liu L, Yang XA, Lu XP, Zhang WB. Sensitive determination of Se(IV) and t Se in rice and water samples using L -cysteine modified carbon paste electrode-based electrolytic hydride generation and atomic fluorescence spectrometry analysis. Talanta 2017; 171:90-100. [DOI: 10.1016/j.talanta.2017.04.070] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 04/19/2017] [Accepted: 04/30/2017] [Indexed: 10/19/2022]
|
16
|
Huber CS, Vale MGR, Dessuy MB, Svoboda M, Musil S, Dědina J. Sample preparation for arsenic speciation analysis in baby food by generation of substituted arsines with atomic absorption spectrometry detection. Talanta 2017; 175:406-412. [PMID: 28842009 DOI: 10.1016/j.talanta.2017.07.055] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 07/18/2017] [Accepted: 07/19/2017] [Indexed: 11/18/2022]
Abstract
A slurry sampling procedure for arsenic speciation analysis in baby food by arsane generation, cryogenic trapping and detection with atomic absorption spectrometry is presented. Several procedures were tested for slurry preparation, including different reagents (HNO3, HCl and tetramethylammonium hydroxide - TMAH) and their concentrations, water bath heating and ultrasound-assisted agitation. The best results for inorganic arsenic (iAs) and dimethylarsinate (DMA) were reached when using 3molL-1 HCl under heating and ultrasound-assisted agitation. The developed method was applied for the analysis of five porridge powder and six baby meal samples. The trueness of the method was checked with a certified reference material (CRM) of total arsenic (tAs), iAs and DMA in rice (ERM-BC211). Arsenic recoveries (mass balance) for all samples and CRM were performed by the determination of the tAs by inductively coupled plasma mass spectrometry (ICP-MS) after microwave-assisted digestion and its comparison against the sum of the results from the speciation analysis. The relative limits of detection were 0.44, 0.24 and 0.16µgkg-1 for iAs, methylarsonate and DMA, respectively. The concentrations of the most toxic arsenic species (iAs) in the analyzed baby food samples ranged between 4.2 and 99µgkg-1 which were below the limits of 300, 200 and 100µgkg-1 set by the Brazilian, Chinese and European legislation, respectively.
Collapse
Affiliation(s)
- Charles S Huber
- Instituto Federal Sul-rio-grandense, Campus Pelotas, Praça Vinte de Setembro 455, Centro, 96015-360 Pelotas, RS, Brazil; Universidade Federal do Rio Grande do Sul, Instituto de Química, Av. Bento Gonçalves 9500, Agronomia, 91509-900 Porto Alegre, RS, Brazil; Institute of Analytical Chemistry of the CAS, v. v. i., Veveří 97, 602 00 Brno, Czech Republic.
| | - Maria Goreti R Vale
- Universidade Federal do Rio Grande do Sul, Instituto de Química, Av. Bento Gonçalves 9500, Agronomia, 91509-900 Porto Alegre, RS, Brazil
| | - Morgana B Dessuy
- Universidade Federal do Rio Grande do Sul, Instituto de Química, Av. Bento Gonçalves 9500, Agronomia, 91509-900 Porto Alegre, RS, Brazil
| | - Milan Svoboda
- Institute of Analytical Chemistry of the CAS, v. v. i., Veveří 97, 602 00 Brno, Czech Republic
| | - Stanislav Musil
- Institute of Analytical Chemistry of the CAS, v. v. i., Veveří 97, 602 00 Brno, Czech Republic
| | - Jiři Dědina
- Institute of Analytical Chemistry of the CAS, v. v. i., Veveří 97, 602 00 Brno, Czech Republic
| |
Collapse
|
17
|
Selective and sensitive determination of As(III) and t As in Chinese herbal medicine samples using L -cysteine modified carbon paste electrode-based electrolytic hydride generation and AFS analysis. Talanta 2017; 165:258-266. [DOI: 10.1016/j.talanta.2016.12.070] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 12/20/2016] [Accepted: 12/24/2016] [Indexed: 11/18/2022]
|