Determination of sunset yellow and tartrazine by differential pulse polarography

F B Dominguez; F G Diego; J H Mendez

doi:10.1016/0039-9140(90)80213-y

Determination of sunset yellow and tartrazine by differential pulse polarography

Talanta. 1990 Jun;37(6):655-8. doi: 10.1016/0039-9140(90)80213-y.

Authors

F B Dominguez¹, F G Diego, J H Mendez

Affiliation

¹ Departamento de Química Analítica, Nutrición y Bromatología, Universidad de Salamanca, Salamanca, Spain.

PMID: 18964996
DOI: 10.1016/0039-9140(90)80213-y

Abstract

A study has been made of the polarographic (DC and DPP) behaviour of the food dyes Sunset Yellow and Tartrazine in acid and alkaline media and in the absence and presence of polyvinylpyrrolidone. Methods are proposed for the determination of both dyes by DPP over a concentration range of 0.1-10 ppm. The methods have been applied to their determination in soft drinks.