Kaur Amandeep and Gupta Usha (2012) “Simultaneous Spectrophotometric Determination of Ponceau-S and Erythrosine in Pharmaceutical, Cosmetic and Food Samples by Using Mean Centering of Ratio Spectra Method”, International Journal of Research in Chemistry and Environment (IJRCE), 2(3), pp. 191–198. Available at: https://ijrce.org/index.php/ijrce/article/view/361 (Accessed: 24 November 2024).