Singh Kadyan, P., Singh, D., & Singh, I. (2012). Spectrophotometric Determination of Trace Cadmium in Tobacco with Tris-[2,4,6-(2-hydroxy-4-sulpho-1-naphthylazo)]-s-triazine, Trisodium Salt. Asian Journal of Chemistry, 24(12), 5876–5878. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/10039