胶束增溶分光光度法测定环境水样中Cr（Ⅵ）

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The Determination of Cr（Ⅵ）in Water Samples by Using Micelle Enhanced Spectrophotometry

XIAO Guo-shi¹, LAI Ya-wen², ZOU Lian-chun³, CHEN Bo³

1.Test Science Experiment Center，Jilin University, Changchun 130026，China;2.College of GeoExploration Science and Technology, Jilin University, Changchun 130026， China;3.College of Chemistry, Jilin University, Changchun 130026，China

Received:2008-01-10 Revised:1900-01-01 Online:2008-09-26 Published:2008-09-26
Contact: XIAO Guo-shi

Abstract

Abstract: A method of spectrophotometric determination of trace Cr（Ⅵ）with salicyl-fluoroketone in CTMAB micelle was described. The coexist interferential ions such as Fe³⁺, Cr³⁺ and Co²⁺ etc. were masked by diethylenetriminepentaacetic acid (DTPA), then Cr（Ⅵ）was successfully determined. The standard deviation of 0.246(n=10)，relative standard deviation of 2.56%，and recovery ratio of 93.00%-110.0% were obtained. This result is satisfactory for determination trace Cr（Ⅵ）in environment water samples.

Key words: spectrophotometry, salicylfluoroketone, cetyltrimethylammonium bromide, Cr（Ⅵ）, environment water samples

CLC Number:

X132

XIAO Guo-shi, LAI Ya-wen, ZOU Lian-chun, CHEN Bo. The Determination of Cr（Ⅵ）in Water Samples by Using Micelle Enhanced Spectrophotometry[J].J4, 2008, 38(5): 869-0872.

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The Determination of Cr（Ⅵ）in Water Samples by Using Micelle Enhanced Spectrophotometry

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