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Simultaneous spectrophotometric determination of three food dyes by using the first derivative of ratio spectra

✍ Scribed by J.J.Berzas Nevado; C.Guiberteau Cabanillas; A.M.Contento Salcedo


Book ID
116069765
Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
547 KB
Volume
42
Category
Article
ISSN
0039-9140

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Three sensitive and accurate methods for determination of Indigotin and Ponceau-4R in mixtures by Vierordt's method, ratio spectra first order derivative and first order derivative UV spectrophotometry are described. No separation step was required for these novel methods. Ratio spectra first order