title: Battery-Operated Atomic Emission Analyzer for Waterborne Arsenic Based on Atmospheric Pressure Glow Discharge Excitation Source.
abstract: In this paper, a sensitive atomic emission spectrometer (AES) based on a new low power and low argon consumption (<8 W, 100 mL min-1) miniature direct current (dc) atmospheric pressure glow discharge (APGD) plasma (3 mm × 5 mm) excitation source was developed for the determination of arsenic in water samples. In this method, arsenic in water was reduced to AsH3by hydride generation (HG), which was then transported to the APGD source for excitation and detected by a compact CCD (charge-coupled device) microspectrometer. Different parameters affecting the APGD and the hydride generation reactions were investigated. The detection limit for arsenic with the proposed APGD-AES was 0.25 μg L-1, and the calibration curves were found to be linear up to 3 orders of magnitude. The proposed method was successfully applied to the determination of certified reference material (GBW08605), tap water, pond water, groundwater, and hot spring samples. Measurements from the APGD analyzer showed good agreement with the certified value/values obtained with well-established hydride generation atomic fluorescence spectrometry (HG-AFS). These results suggest that the developed robust, cost-effective, and fast analyzer can be used for field based arsenic determination and may provide an important tool for arsenic contamination and remediation programs.
authors.affiliation: State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences , Wuhan, China , 430074.
authors.forename: Chun
authors.initials: C
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences , Wuhan, China , 430074.
authors.forename: Dong
authors.initials: D
authors.lastname: He
authors.affiliation: State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences , Wuhan, China , 430074.
authors.forename: Zhenli
authors.identifier: 0000-0001-8273-8575
authors.initials: Z
authors.lastname: Zhu
authors.affiliation: State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences , Wuhan, China , 430074.
authors.forename: Huan
authors.initials: H
authors.lastname: Peng
authors.affiliation: State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences , Wuhan, China , 430074.
authors.forename: Zhifu
authors.initials: Z
authors.lastname: Liu
authors.affiliation: School of Mechanical Engineering and Electronic Information, China University of Geosciences , Wuhan, China , 430074.
authors.forename: Guojun
authors.initials: G
authors.lastname: Wen
authors.affiliation: School of Mechanical Engineering and Electronic Information, China University of Geosciences , Wuhan, China , 430074.
authors.forename: Jianghao
authors.initials: J
authors.lastname: Bai
authors.affiliation: Faculty of Material Science and Chemistry, China University of Geosciences , Wuhan, China , 430074.
authors.forename: Hongtao
authors.initials: H
authors.lastname: Zheng
authors.affiliation: State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences , Wuhan, China , 430074.
authors.forename: Shenghong
authors.initials: S
authors.lastname: Hu
authors.affiliation: State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences , Wuhan, China , 430074.|State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Studies, China University of Geosciences , Wuhan, China , 430074.
authors.forename: Yanxin
authors.initials: Y
authors.lastname: Wang