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Determination of Cr(VI) in Cosmetics by FAAS after Cloud Point Extraction

LI Chun-xiang

Open publisher page 1 citations

Abstract

A cloud point extraction procedure(CPE) was developed for the determination trace amounts of Cr(VI) in cosmetic samples by using flame atomic absorption spectrometry(FAAS).The effect of experimental conditions such as pH,concentration of APDC,concentration of Triton X-114,bath temperature,and time on cloud point extraction were discussed.Under optimized conditions,the detection limit of proposed method was 0.026 mg/L and the relative standard deviation was 1.52%.The results showed that the chromium content in majority of cosmetics was over national standard,and the quality supervision departments should pay more attention to this phenomenon.

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What this paper is about

A cloud point extraction procedure(CPE) was developed for the determination trace amounts of Cr(VI) in cosmetic samples by using flame atomic absorption spectrometry(FAAS).The effect of experimental conditions such as pH,concentration of APDC,concentration of Triton X-114,bath temperature,and time on cloud point extraction were discussed.Under optimized conditions,the detection limit of proposed method was 0.026 mg/L and the relative standard deviation was 1.52%.The results showed that the chromium content in majority of cosmetics was over national standard,and the quality supervision departments should pay more attention to this phenomenon.

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Available abstract

A cloud point extraction procedure(CPE) was developed for the determination trace amounts of Cr(VI) in cosmetic samples by using flame atomic absorption spectrometry(FAAS).The effect of experimental conditions such as pH,concentration of APDC,concentration of Triton X-114,bath temperature,and time on cloud point extraction were discussed.Under optimized conditions,the detection limit of proposed method was 0.026 mg/L and the relative standard deviation was 1.52%.The results showed that the chromium content in majority of cosmetics was over national standard,and the quality supervision departments should pay more attention to this phenomenon.

Key concepts: Cloud point, Cosmetics, Extraction (chemistry), Relative standard deviation, Detection limit, Chemistry, Chromatography, National standard

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