DETERMINATION OF SYNTHETIC FOOD COLORS BY MEANS OF A NOVEL SAMPLE PREPARATION SYSTEM

被引：34

作者：

ASHKENAZI, P

YARNITZKY, C

CAIS, M

机构：

[1] Department of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa

来源：

ANALYTICA CHIMICA ACTA | 1991年 / 248卷 / 01期

关键词：

VOLTAMMETRY; LIQUID CHROMATOGRAPHY; EXTRACTION; FOOD DYES;

D O I：

10.1016/S0003-2670(00)80898-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel self-contained system, dynamic column solid-phase extraction (DC-SPE), for the facile extraction and concentration of five widely used synthetic food dyes is described. The determination of the DC-SPE-extracted dyes in both standard solutions and commercial products was done by rapid square-wave voltammetry and by liquid chromatography in the concentration ranges 1.0 x 10(-6)-2.0 x 10(-5) M and 1.0 x 10(-5)-1.0 x 10(-4) M, respectively. The method of standard additions was used to determine recoveries for several commercial products.

引用

页码：289 / 299

页数：11

共 21 条

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