Simultaneous determination of the colorants sunset yellow FCF and quinoline yellow by solid-phase spectrophotometry using partial least squares multivariate calibration

被引：33

作者：

CapitanVallvey, LF ^{[1
]}

Fernandez, MD ^{[1
]}

deOrbe, I ^{[1
]}

Vilchez, JL ^{[1
]}

Avidad, R ^{[1
]}

机构：

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

来源：

ANALYST | 1997年 / 122卷 / 04期

关键词：

Sunset Yellow FCF; Quinoline Yellow; partial least squares; soft drinks; solid-phase spectrophotometry;

D O I：

10.1039/a605057c

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 the colorants Sunset Yellow FCF and Quinoline Yellow using solid-phase spectrophotometry is proposed. The colorants were isolated in Sephadex DEAE A-25 gel at pH 5.0, the gel-colorants system was packed in a 1 mm silica cell and spectra were recorded between 400 and 600 nm against a blank, Statistical results were obtained by partial least squares (PLS) multivariate calibration. The optimized matrix by using the PLS-2 method enables the determination of the colorants in artificial mixtures and commercial soft drinks.

引用

页码：351 / 354

页数：4