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题名: Solid-phase spectrophotometric determination of nickel in water and vegetable samples at sub-mu g 1(-1) level with o-carboxylphenyldiazoaminoazobenzene loaded XAD-4
作者: Liu, YW; Chang, XJ(常希俊); Wang, S; Guo, Y; Din, BJ; Meng, SM
收录类别: SCIE ; CPCI-S ; EI ; MEDLINE ; BIOSIS
出版日期: 2004-09-08
会议名称: Inaugural Conference on Southern and Eastern Africa Network of Analytical Chemists (SENAC)
会议日期: JUL 07-10, 2004
会议地点: Gaborone, BULGARIA
英文摘要: A highly sensitive and selective solid-phase spectrophotometric method for the determination of sub-mug l(-1) level nickel(II) is described. Nickel(II) was sorbed on a styrene-divinylbenzene-type resin Amberlite XAD-4 as a Ni(II)-o-carboxylphenyldiazoaminoazobenzene (o-CDAA) complex. At pH 9.0, resin phase absorbances at 588 and 800nm were measured directly with an apparent molar absorptivity of 2.95 x 107 g mol(-1) cm(-1). The linear range of the determination was 1.2-41 mug g(-1) resin. The detection limit and the quantification limit were found to be 0.24 and 0.76 mug g(-1) resin, respectively. The relative standard deviation of 10 replicate determinations of 1.0 mug nickel(II) in 100 ml sample was of 1.5%. The tolerance limit of coexistent ions was also investigated. Most of them are in tolerable amount. For practical analyses, 1 ml acetylacetone used can eliminate the interferences caused by Cu and Fe. The procedure was validated by analysis a certified water reference material (GBW 08618 Beijing, China) and a tomato leaf certified reference material (GBW 08402 Beijing, China) with the results in agreement with the certified values. The method was applied to the determination of nickel(II) in water and vegetable samples with satisfactory results. (C) 2004 Elsevier B.V. All rights reserved.
关键词: solid-phase spectrophotometry ; o-carboxylphenyldiazoaminoazobenzene ; amberlite XAD-4-oCDAA ; water ; vegetable
作者部门: Lanzhou Univ, Sch Chem & Chem Engn, Lanzhou 730000, Peoples R China ; Shanxi Datong Univ, Inst Datong, Dept Chem, Datong 037000, Peoples R China ; Xian Jiaotong Univ, Sch Mat Sci & Engn, Xian 710049, Peoples R China
通讯作者: Liu, YW (reprint author), Lanzhou Univ, Sch Chem & Chem Engn, Lanzhou 730000, Peoples R China.
学科分类: Chemistry
会议录: TALANTA
期号: 1
页码: 160-166
出版者: ELSEVIER
出版地: AMSTERDAM
语种: 英语
DOI: 10.1016/j.talanta.2004.02.002
ISSN号: 0039-9140
WOS记录号: WOS:000223572900024
EI记录号: 2004358329553
PM记录号: 18969583
BIOSIS记录号: BIOSIS:PREV200400454476
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内容类型: 会议论文
URI标识: http://ir.lzu.edu.cn/handle/262010/113156
Appears in Collections:化学化工学院_会议论文

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Recommended Citation:
Liu, YW,Chang, XJ,Wang, S,et al. Solid-phase spectrophotometric determination of nickel in water and vegetable samples at sub-mu g 1(-1) level with o-carboxylphenyldiazoaminoazobenzene loaded XAD-4[C]. 见:Inaugural Conference on Southern and Eastern Africa Network of Analytical Chemists (SENAC). Gaborone, BULGARIA. JUL 07-10, 2004.
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