Simultaneous Determination of Eosin-Yellow and Ponceau-SUsingH-Point Standard Addition Method in Micellar Media
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H-point standard addition method (HPSAM) is developed for simultaneous determination of eosin-Yand ponceau-s in micellar media. Nickel chloride (NiCl2) is used as chromogenic reagent for complexes formation of eosin-Yand ponceau-Sfood 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-Yand 0.159-3.80 μg/mL of ponceau-S. The proposed procedures have been applied successfully for the simultaneous determination of eosin-Yand ponceau-Sin synthetic binary mixtures and real samples.
2001 ◽
Vol 437
(2)
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pp. 273-280
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2007 ◽
Vol 67
(2)
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pp. 378-384
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2007 ◽
Vol 62
(4)
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pp. 342-347
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Keyword(s):
2013 ◽
Vol 138
(2-3)
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pp. 745-749
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