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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Simultaneuous Determination of As(III) and As(V) in Disused Mine Tailing Samples by Hydride Generation-Inductively Coupled Plasma-Atomic Emission Spectrometry

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2000, v.13 no.2, pp.189-193
Kim, Sun-Tae
Lim, Yoo-Ree
Park, Kyung-Su
Chung, Jin-Ho
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Abstract

Arsenic (III) and arsenic (V) in disused mine tailing samples have been determined simutaneuously by hydride generation inductively coupled plasma atomic emission spectrometry (HG-ICP-AES). Total arsenic was determined using 2% <TEX>$NaBH_4$</TEX> and 6 M HCl after prereduction of As(V) to As(III) with) 1M KI. Arsenic (III) was determined selectively using citrate/citric acid buffer with range of pH 5-6, it was determined by HG-ICP-AES. Arsenic (V) can be evaluated by the differences. According to the results, arsenic (V) was over 90% among the total arsenic extracted from disused mine tailing samples.

keywords
arsenic analysis, speciation of As(III) and As(V), ICP-AES, hydride generation


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