Determination of As(III) and As(V) in soils using sequential extraction combined with flow injection hydride generation atomic fluorescence detection

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Determination of As(III) and As(V) in soils using sequential extraction combined with flow injection hydride generation atomic fluorescence detection
	Shi, JB; Tang, ZY; Jin, ZX; Chi, Q; He, B; Jiang, GB
刊名	ANALYTICA CHIMICA ACTA
	2003
卷号	477 期号:1 页码:139-147
关键词	speciation sequential extraction FI-HG-AFS arsenic soils
英文摘要	An analytical procedure for determination of As(III) and As(V) in soils using sequential extraction combined with flow injection (M) hydride generation atomic fluorescence spectrometry (HG-AFS) was presented. The soils were sequentially extracted by water, 0.6 mol 1(-1) KH2PO4 solution, 1% (v/v) HCl solution and 1% (w/v) NaOH solution. The arsenite (As(III)) in extract was analyzed by HG-AFS in the medium of 0.1 mol 1(-1) citric acid solution, then the total arsenic in extract was determined by HG-AFS using on-line reduction of arsenate with L-cysteine. The concentration of arsenate (As(V)) was calculated by the difference. The optimum conditions of extraction and determination were studied in detail. The detection limit (3sigma) for As(III) and As(V) were 0.11 and 0.07 mug 1(-1), respectively. The relative standard deviation (R.S.D.) was 1.43% (n = 11) at the 10 mug 1(-1) As level. The method was applied in the determination of As(III) and As(V) of real soils and the recoveries of As(III) and As(V) were in the range of 89.3-118 and 80.4-111%, respectively. (C) 2002 Elsevier Science B.V. All rights reserved.
研究领域[WOS]	Chemistry
WOS记录号	WOS:000180435900014
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/23672]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Shi, JB,Tang, ZY,Jin, ZX,et al. Determination of As(III) and As(V) in soils using sequential extraction combined with flow injection hydride generation atomic fluorescence detection[J]. ANALYTICA CHIMICA ACTA,2003,477(1):139-147.
APA	Shi, JB,Tang, ZY,Jin, ZX,Chi, Q,He, B,&Jiang, GB.(2003).Determination of As(III) and As(V) in soils using sequential extraction combined with flow injection hydride generation atomic fluorescence detection.ANALYTICA CHIMICA ACTA,477(1),139-147.
MLA	Shi, JB,et al."Determination of As(III) and As(V) in soils using sequential extraction combined with flow injection hydride generation atomic fluorescence detection".ANALYTICA CHIMICA ACTA 477.1(2003):139-147.