Research Article
Four Derivative Spectrophotometric Methods for the Simultaneous Determination of Carmoisine and Ponceau 4R in Drinks and Comparison with High Performance Liquid Chromatography
Table 2
Statistical parameters of the simultaneous determination of Carmoisine and Ponceau 4R by DSM, RDM, and DDM.
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Five separate determinations were performed and mean was calculated. : the concentration of the analyte (µg mL−1). |