Design and development of an automated flow injection instrument for the determination of arsenic species in natural waters

被引：7

作者：

Hanrahan, Grady ^{[1
]}

Fan, Tina K. ^{[2
]}

Kantor, Melanie ^{[3
]}

Clark, Keith ^{[4
]}

Cardenas, Steven ^{[4
]}

Guillaume, Darrell W. ^{[5
]}

Khachikian, Crist S. ^{[6
]}

机构：

[1] Calif Lutheran Univ, Dept Chem, Thousand Oaks, CA 91360 USA

[2] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA

[3] Stanford Univ, Sch Humanities & Sci, Stanford, CA 94305 USA

[4] Calif State Univ Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90032 USA

[5] Calif State Univ Los Angeles, Dept Mech Engn, Los Angeles, CA 90032 USA

[6] Calif State Univ Los Angeles, Dept Civil Engn, Los Angeles, CA 90032 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2009年 / 80卷 / 10期

基金：

美国国家卫生研究院; 美国国家科学基金会;

关键词：

ENVIRONMENTAL WATER; SPECIATION ANALYSIS; COLORIMETRIC METHOD; AQUEOUS SAMPLES; RAPID OXIDATION; POTABLE WATER; BLUE METHOD; FIELD; REDUCTION; MOBILITY;

D O I：

10.1063/1.3202083

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The design and development of an automated flow injection instrument for the determination of arsenite [As(III)] and arsenate [As(V)] in natural waters is described. The instrument incorporates solenoid activated self-priming micropumps and electronic switching valves for controlling the fluidics of the system and a miniature charge-coupled device spectrometer operating in a graphical programming environment. The limits of detection were found to be 0.79 and 0.98 mu M for As(III) and As(V), respectively, with linear range of 1-50 mu M. Spiked ultrapure water samples were analyzed and recoveries were found to be 97%-101% for As(III) and 95%-99% for As(V), respectively. Future directions in terms of automation, optimization, and field deployment are discussed. (C) 2009 American Institute of Physics. [doi:10.1063/1.3202083]

引用

页数：5

共 35 条

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