In this contribution, a new sensitive and selective method was
developed for the sensitive quantification of tartrazine based on
the catalytic effect of AgNPs on the oxidation of tartrazine in acetate–
acetic acid buffer media. The proposed method was applied
to the determination of tartrazine in proprietary foods purchased
from local stores. The results, shown in Tables 1 and 2, suggest that
the method is suitable for the determination of tartrazine. Further more Furthermore,
very accurate results were obtained for spiked values of the
tartrazine into the food samples. In addition to accuracy, the method
is simple and economical for the determination of tartrazine in
food samples.