Gao, H.-W., Xie, R., Zhang, H.-Z., & Zhang, . (2010). Dual-Wavelengths Spectrophotometric Determination of Trace Amounts of Copper with Dibromo-o-Nitrophenylflurone . Asian Journal of Chemistry, 12(3), 801–805. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/23063