兰州大学机构库 >化学化工学院
Solid-phase spectrophotometric determination of nickel in water and vegetable samples at sub-mu g 1(-1) level with o-carboxylphenyldiazoaminoazobenzene loaded XAD-4
Liu, YW; Chang, XJ(常希俊); Wang, S; Guo, Y; Din, BJ; Meng, SM; Liu, YW (reprint author), Lanzhou Univ, Sch Chem & Chem Engn, Lanzhou 730000, Peoples R China.
2004-09-08
会议名称Inaugural Conference on Southern and Eastern Africa Network of Analytical Chemists (SENAC)
会议录名称TALANTA
期号1
页码160-166
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
会议日期JUL 07-10, 2004
会议地点Gaborone, BULGARIA
出版地AMSTERDAM
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
学科领域Chemistry
DOI10.1016/j.talanta.2004.02.002
出版者ELSEVIER
收录类别SCIE ; CPCI-S ; EI ; MEDLINE ; BIOSIS
语种英语
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
第一机构
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文献类型会议论文
条目标识符http://ir.lzu.edu.cn/handle/262010/113156
Collection化学化工学院
通讯作者Liu, YW (reprint author), Lanzhou Univ, Sch Chem & Chem Engn, Lanzhou 730000, Peoples R China.
Recommended Citation:
GB/T 7714
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]. AMSTERDAM,2004:160-166.
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