1
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Liu X, Cheng G, Yang C, Wang G, Li S, Li Y, Zheng H, Hu S, Zhu Z. Ultraviolet assisted liquid spray dielectric barrier discharge plasma-induced vapor generation for sensitive determination of arsenic by atomic fluorescence spectrometry. Talanta 2023; 257:124339. [PMID: 36801565 DOI: 10.1016/j.talanta.2023.124339] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023]
Abstract
In this study, a novel sensitive method for As determination by atomic fluorescence spectrometry was developed based on UV-assisted liquid spray dielectric barrier discharge (UV-LSDBD) plasma-induced vapor generation. It was found that prior-UV irradiation greatly facilitates As vapor generation in LSDBD likely because of the increased generation of active substances and the formation of As intermediates with UV irradiation. The experimental conditions affecting the UV and LSDBD processes (such as formic acid concentration, irradiation time, the flow rates of sample, argon and hydrogen) were optimized in detail. Under the optimum conditions, As signal measured by LSDBD can be enhanced by about 16 times with UV irradiation. Furthermore, UV-LSDBD also offers much better tolerance to coexisting ions. The limit of detection was calculated to be 0.13 μg L-1 for As, and the relative standard deviation of the repeated measurements was 3.2% (n = 7). The accuracy and effectiveness of this new method were further verified by the analysis of simulated natural water reference sample and real water samples. In this work, UV irradiation was utilized for the first time as an enhancement strategy for PIVG, which opens a new approach for developing green and efficient vapor generation methods.
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Affiliation(s)
- Xing Liu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Guo Cheng
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China; Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Chun Yang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Guan Wang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Shuyang Li
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Yixiao Li
- Yiwu Academy of Science & Technology for Inspection & Quarantine, Yiwu 322000, China
| | - Hongtao Zheng
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Shenghong Hu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Zhenli Zhu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China; Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China; State Environmental Protection Key Laboratory of Source Appointment and Control of Aquatic Pollution, Ministry of Ecology and Environment, Wuhan 430074, China.
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2
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Liu S, Yang QY, Chen S, Yu YL, Wang JH. Ultrasonic Nebulization-Accelerated Gas-Phase Enrichment Following In Situ Microplasma Desorption for Analysis of Trace Heavy Metals by Optical Emission Spectrometry. Anal Chem 2022; 94:16549-16554. [DOI: 10.1021/acs.analchem.2c04149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Shuang Liu
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Qing-Yun Yang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Shuai Chen
- 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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3
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Liu S, Shen H, Gao C, Liu JH, Yu YL, Wang JH. Analysis of trace phytoavailable heavy metals in saline soil extract by one-step electroextraction coupled with in situ desorption microplasma optical emission spectrometry. Anal Chim Acta 2022; 1232:340497. [DOI: 10.1016/j.aca.2022.340497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/02/2022] [Accepted: 10/05/2022] [Indexed: 11/30/2022]
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4
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Yang C, Cheng G, Cheng SQ, Liu X, Liu Y, Zheng HT, Hu SH, Zhu ZL. Direct and Sensitive Determination of Antimony in Water by Hydrogen-Doped Solution Anode Glow Discharge-Optical Emission Spectrometry Without Hydride Generation. Anal Chem 2021; 93:16393-16400. [PMID: 34859666 DOI: 10.1021/acs.analchem.1c02940] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the present work, a novel, simple, and sensitive method for the direct determination of trace Sb in water samples was developed based on hydrogen-doped solution anode glow discharge-optical emission spectrometry (SAGD-OES). It was found that the vapor generation and excitation of Sb occurred simultaneously in the SAGD, contributing to the significant improvement in the sensitivity of Sb as compared with normal pure He-operated SAGD or solution cathode glow discharge. Besides, the proposed hydrogen-doped SAGD-OES could be operated even at pH = 14, which could reduce the interference of coexisting ions as many metal ions could be precipitated and removed. Our results demonstrated that the proposed method offered good tolerance to the interferences of Li, Na, Ca, Mg, Fe, Ni, Mn, and Zn ions even at a concentration of 50 mg L-1. Under optimized conditions, the limit of detection of Sb was 0.85 μg L-1, which was comparable to that of microplasma sources coupled with conventional hydride generation. The linearity of the Sb calibration curve reached R2 > 0.999 in the 5-5000 μg L-1 range. Finally, the accuracy of the proposed method was validated by the determination of certified reference materials [GSB 07-1376-2001 (1) and (2))] and real water samples. The proposed low-power (6 W), green, sensitive, rapid, and robust method provides a promising approach for on-site trace Sb analysis and may also be extended to other elements.
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Affiliation(s)
- Chun Yang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Guo Cheng
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Shuang-Quan Cheng
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Xing Liu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Ying Liu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Hong-Tao Zheng
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Sheng-Hong Hu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Zhen-Li Zhu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China.,State Environmental Protection Key Laboratory of Source Apportionment and Control of Aquatic Pollution, Ministry of Ecology and Environment, Wuhan 430074, China
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5
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Zhang Y, Mao X, Tian D, Liu J, Li C. Trace arsenic analysis in edible seaweeds by miniature in situ dielectric barrier discharge microplasma optical emission spectrometry based on gas phase enrichment. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:4079-4089. [PMID: 34554154 DOI: 10.1039/d1ay01034d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this work, a novel method using low-cost miniaturized hydride generation optical emission spectrometry equipment coupled with an in situ dielectric barrier discharge trap (HG-in situ DBD trap-OES) was established for the determination of As in edible seaweed samples. An improved peak volume algorithm, where the start time point and end time point of the spectrum at each concentration are determined according to the unified judgment criteria, was first proposed to extend the linear range from 1-100 μg L-1 to 1-200 μg L-1, and increase the sensitivity by about 30%. In addition, a modification was done on the DBD implementation, providing an enhancement of sensitivity by a factor of about 4 for As. All in all the detection limit (LOD) was improved from 0.5 μg L-1 to 0.2 μg L-1. By applying the method to seaweed samples, a method detection limit (MD) of 0.25 mg kg-1 was achieved, with less than 3% relative standard deviations (RSDs). The calibration linearity reached R2 > 0.990 in the 1.25-250 mg kg-1 range. Results obtained by the proposed method showed good agreement with that of certified reference materials (CRMs), and spiked recoveries were 103% to 114%, indicating favorable accuracy. The proposed method is attractive in terms of instrumentation size (0.6 m × 0.5 m × 0.3 m), power consumption (<60 W), manufacturing cost, and gas consumption (300 measurements for 4 L compressed Ar/H2 gas), and therefore more advantageous than conventional atomic spectrometric methods.
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Affiliation(s)
- Yaru Zhang
- College of Instrumentation & Electrical Engineering, Jilin University, Changchun 130023, China.
- Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Xuefei Mao
- Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Di Tian
- College of Instrumentation & Electrical Engineering, Jilin University, Changchun 130023, China.
| | - Jixin Liu
- Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- Beijing Ability Technique Company, Limited, Beijing 100081, China
| | - Chunsheng Li
- College of Instrumentation & Electrical Engineering, Jilin University, Changchun 130023, China.
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Wang L, Xu X, Niu X, Pan J. Colorimetric detection and membrane removal of arsenate by a multifunctional L-arginine modified FeOOH. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118021] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Review: Miniature dielectric barrier discharge (DBD) in analytical atomic spectrometry. Anal Chim Acta 2021; 1147:211-239. [DOI: 10.1016/j.aca.2020.11.034] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 11/17/2020] [Accepted: 11/22/2020] [Indexed: 11/24/2022]
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8
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Yen HC, Kuo TR, Huang MH, Huang HK, Chen CC. Design of Fluorescence-Enhanced Silver Nanoisland Chips for High-Throughput and Rapid Arsenite Assay. ACS OMEGA 2020; 5:19771-19777. [PMID: 32803072 PMCID: PMC7424703 DOI: 10.1021/acsomega.0c02533] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 07/16/2020] [Indexed: 05/03/2023]
Abstract
High-throughput and rapid arsenite (As(III)) monitoring is an urgent task to deal with the critical threat from As(III) contamination in the environment. In this study, an effective, portable, and sensitive As(III) assay was developed using the plasmonic silver (pAg) chips for As(III) detection. The pAg chips were fabricated by a simple seed-mediated method to grow the silver nanoisland films (Ag-NIFs) with the compact nanoislands and adjustable interisland gaps on the large-sized substrates. With appropriate surface functionalization and optimal chip manufacturing, Cy7.5 fluorescence dye can be immobilized on the surface of Ag-NIFs in the presence of As(III) to output the enhanced fluorescence signals up to 10-fold and improve the detection limit of As(III) less than 10 ppb. According to our results, the high-throughput detection measurements and wide dynamic range over 4 orders of magnitude implied the broad prospects of pAg chips in fluorescence-enhanced assays. The proposed As(III) assay has shown great opportunities for the practical application of ultratrace As(III) monitoring.
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Affiliation(s)
- Hung-Chi Yen
- Department
of Chemistry, National Taiwan Normal University, Taipei 116, Taiwan
| | - Tsung-Rong Kuo
- Graduate
Institute of Nanomedicine and Medical Engineering, College of Biomedical
Engineering, Taipei Medical University, Taipei 110, Taiwan
- International
Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110, Taiwan
| | - Min-Hui Huang
- Department
of Chemistry, National Taiwan Normal University, Taipei 116, Taiwan
| | - Hao-Kang Huang
- Department
of Chemistry, National Taiwan Normal University, Taipei 116, Taiwan
| | - Chia-Chun Chen
- Department
of Chemistry, National Taiwan Normal University, Taipei 116, Taiwan
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9
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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]
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10
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Colorimetric determination of As(III) based on 3-mercaptopropionic acid assisted active site and interlayer channel dual-masking of Fe-Co-layered double hydroxides with oxidase-like activity. Mikrochim Acta 2019; 186:815. [DOI: 10.1007/s00604-019-3835-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 09/15/2019] [Indexed: 11/25/2022]
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11
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Peng X, Wang Z. Ultrasensitive Determination of Selenium and Arsenic by Modified Helium Atmospheric Pressure Glow Discharge Optical Emission Spectrometry Coupled with Hydride Generation. Anal Chem 2019; 91:10073-10080. [DOI: 10.1021/acs.analchem.9b02006] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Xiaoxu Peng
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zheng Wang
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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12
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Vogel P, Marggraf U, Brandt S, García-Reyes JF, Franzke J. Analyte-Tailored Controlled Atmosphere Improves Dielectric Barrier Discharge Ionization Mass Spectrometry Performance. Anal Chem 2019; 91:3733-3739. [PMID: 30672695 DOI: 10.1021/acs.analchem.9b00112] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Plasma sources in atmospheric pressure soft-ionization mass spectrometry have gained significant interest in recent years. As many of these sources are used under ambient air conditions, their interaction with the surrounding atmosphere plays an important role in the ionization pathway. This study focuses on the interaction between the plasma source and the surrounding atmosphere by connecting the plasma source to the mass spectrometer using a 2 mm ID closed reactant capillary supplied by a reactant gas up to 500 mL per minute to gain a controlled atmosphere. Different reactant gases (Ar, He, O2, and N2) and reactant gas mixtures are tested with regard to the DBDI performance and then used to improve the ionization efficiency. Tailoring the controlled atmosphere for a certain analyte, for example, perfluorinated compounds, leads to significantly improved limits of detection up to 2 ppb.
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Affiliation(s)
- Pascal Vogel
- Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V. , Bunsen-Kirchhoff-Straße 11 , 44139 Dortmund , Germany
| | - Ulrich Marggraf
- Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V. , Bunsen-Kirchhoff-Straße 11 , 44139 Dortmund , Germany
| | - Sebastian Brandt
- Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V. , Bunsen-Kirchhoff-Straße 11 , 44139 Dortmund , Germany
| | - Juan F García-Reyes
- Analytical Chemistry Research Group , University of Jaén , Campus Las Lagunillas , 23071 Jaén , Spain
| | - Joachim Franzke
- Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V. , Bunsen-Kirchhoff-Straße 11 , 44139 Dortmund , Germany
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13
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Yang C, Chan GCY, He D, Liu Z, Deng Q, Zheng H, Hu S, Zhu Z. Highly Sensitive Determination of Arsenic and Antimony Based on an Interrupted Gas Flow Atmospheric Pressure Glow Discharge Excitation Source. Anal Chem 2018; 91:1912-1919. [DOI: 10.1021/acs.analchem.8b03944] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Chun Yang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - George C.-Y. Chan
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Dong He
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Zhifu Liu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Qisi Deng
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Hongtao Zheng
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Shenghong Hu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Zhenli Zhu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
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14
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Brandt S, Klute FD, Schütz A, Marggraf U, Drees C, Vogel P, Vautz W, Franzke J. Flexible Microtube Plasma (FμTP) as an Embedded Ionization Source for a Microchip Mass Spectrometer Interface. Anal Chem 2018; 90:10111-10116. [PMID: 30063325 DOI: 10.1021/acs.analchem.8b01493] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Dielectric barrier discharges are used as soft ionization sources for mass spectrometers or ion mobility spectrometers, enabling excellent possibilities for analytical applications. A new robust and small-footprint discharge design, flexible microtube plasma (FμTP), developed as a result of ongoing miniaturization and electrode design processes, is presented in this work. This design provides major safety benefits by fitting the electrode into an inert flexible fused silica capillary (tube). Notably, in this context, the small discharge dimensions enable very low gas flows in the range of <100 mL min-1; portability; the use of hydrogen, nitrogen, and air in addition to noble gases such as helium and argon, including its mixtures with propane; and application in microchip environments. By coupling FμTP with gas chromatography/mass spectrometry, we show that the polarity principle of the new discharge design allows it to outperform established ionization sources such as dielectric barrier discharge for soft ionization (DBDI) and low-temperature plasma (LTP) at low concentrations of perfluoroalkanes in terms of sensitivity, ionization efficiency, chemical background, linear dynamic range, and limit of detection by a large margin. In negative ion mode, the limit of detection is improved by more than 3-fold compared with that of DBDI and by 8-fold compared with that of LTP. The protonation capability was evaluated by headspace measurements of diisopropyl methylphosphonate in positive ion mode, showing low fragmentation and high stability in comparison to DBDI and LTP.
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Affiliation(s)
- Sebastian Brandt
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V. , Bunsen-Kirchhoff-Str. 11 , 44139 Dortmund , Germany
| | - Felix David Klute
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V. , Bunsen-Kirchhoff-Str. 11 , 44139 Dortmund , Germany
| | - Alexander Schütz
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V. , Bunsen-Kirchhoff-Str. 11 , 44139 Dortmund , Germany
| | - Ulrich Marggraf
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V. , Bunsen-Kirchhoff-Str. 11 , 44139 Dortmund , Germany
| | - Carolin Drees
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V. , Bunsen-Kirchhoff-Str. 11 , 44139 Dortmund , Germany
| | - Pascal Vogel
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V. , Bunsen-Kirchhoff-Str. 11 , 44139 Dortmund , Germany
| | - Wolfgang Vautz
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V. , Bunsen-Kirchhoff-Str. 11 , 44139 Dortmund , Germany
| | - Joachim Franzke
- Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V. , Bunsen-Kirchhoff-Str. 11 , 44139 Dortmund , Germany
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15
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Cai Y, Yu YL, Wang JH. Alternating-Current-Driven Microplasma for Multielement Excitation and Determination by Optical-Emission Spectrometry. Anal Chem 2018; 90:10607-10613. [PMID: 30070828 DOI: 10.1021/acs.analchem.8b02904] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Microplasma optical-emission spectrometry (OES) is a promising technique for developing portable analytical instrumentations for real-time and on-site measurement of trace elemental species. However, its analytical performance is far from satisfactory for multielement analysis. Herein, a miniature OES system is developed for simultaneous multielement analysis with alternating-current-driven microplasma generated on the nozzle of a pneumatic micronebulizer as the excitation source. Because of the strong excitation capability of the microplasma and its sufficient contact with solution, a series of elements, including Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Na, Ni, Pb, and Zn, is directly excited in the spray with solution nebulization at a flow rate of 8 μL s-1. The characteristic optical emissions are measured by a charge-coupled-device (CCD) spectrometer. In addition, hydride generation is compatible with the present system, which makes it feasible for the simultaneous excitation of hydrides of As, Ge, Hg, Sb, and Sn by reaction with 0.8% (m/v) NaBH4. The microplasma-OES system exhibits a powerful capability for multielement analysis with favorable limits of detection for the mentioned elements.
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Affiliation(s)
- Yi Cai
- 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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16
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Qi Y, Mao X, Liu J, Na X, Chen G, Liu M, Zheng C, Qian Y. In Situ Dielectric Barrier Discharge Trap for Ultrasensitive Arsenic Determination by Atomic Fluorescence Spectrometry. Anal Chem 2018; 90:6332-6338. [DOI: 10.1021/acs.analchem.8b01199] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Yuehan Qi
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences and Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture, Beijing 100081, China
| | - Xuefei Mao
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences and Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture, Beijing 100081, China
| | - Jixin Liu
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences and Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture, Beijing 100081, China
| | - Xing Na
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences and Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture, Beijing 100081, China
- Beijing Ability Technique Company, Limited, Beijing 100081, China
| | - Guoying Chen
- U.S. Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, United States
| | - Meitong Liu
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences and Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture, Beijing 100081, China
- College of Chemistry, Jilin University, Changchun 130012, China
| | - Chuangmu Zheng
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences and Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture, Beijing 100081, China
| | - Yongzhong Qian
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences and Key Laboratory of Agro-Food Safety and Quality, Ministry of Agriculture, Beijing 100081, China
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