Journal of Chemistry

Journal of Chemistry / 2012 / Article

Open Access

Volume 9 |Article ID 719074 | 9 pages | https://doi.org/10.1155/2012/719074

Simultaneous Determination of Eosin-Yellow and Ponceau-S Using H-Point Standard Addition Method in Micellar Media

Received09 Jun 2011
Accepted12 Aug 2011

Abstract

H-point standard addition method (HPSAM) is developed for simultaneous determination of eosin-Y and ponceau-s in micellar media. Nickel chloride (NiCl2) is used as chromogenic reagent for complexes formation of eosin-Y and ponceau-S food colorants. The measurements were carried out using sodium lauryl sulphate as a surfactant, in buffered solution at pH 6.0. The concentration range of 0.115-2.53 μg/mL of eosin-Y and 0.159-3.80 μg/mL of ponceau-S. The proposed procedures have been applied successfully for the simultaneous determination of eosin-Y and ponceau-S in synthetic binary mixtures and real samples.

Copyright © 2012 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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