Simultaneous determination of quinoline yellow and brilliant blue FCF in cosmetics by solid-phase spectrophotometry

被引：19

作者：

CapitanVallvey, LF ^{[1
]}

Iglesias, NN ^{[1
]}

Paya, IO ^{[1
]}

Castaneda, RA ^{[1
]}

机构：

[1] UNIV GRANADA,DEPT ANALYT CHEM,E-18071 GRANADA,SPAIN

来源：

TALANTA | 1996年 / 43卷 / 09期

关键词：

cosmetics analysis; quinoline yellow-brilliant blue FCF determination; solid-phase spectrophotometry;

D O I：

10.1016/0039-9140(96)01917-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method for the simultaneous determination of quinoline yellow (QY) and brilliant blue FCF (BE) in mixtures by solid-phase spectrophotometry has been developed. Both colorants were isolated in Sephadex DEAE A-25 gel showing maximum absorbances at 632 nm and 415 nm for BE and QY respectively. The applicable concentration ranges were between 25.0 and 500.0 mu g l(-1) for BE and between 50.0 and 750.0 mu g l(-1) for QY. The detection limits were 6.1 and 13.4 mu g l(-1) for BE and QY respectively. Application of the method to real samples (colognes, after shave lotions and shampoo gels) involves a previous extraction process of the colorants before their isolation on the gel.

引用

页码：1457 / 1463

页数：7

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