“The Spectrophotometric Determination of Copper(II) Ion With 7-Bromo-2-Nitroso-1-Oxinaphthalene-3,6-Disulphocid: Spectrophotometric Determination of Copper(II) Ion With 7-Bromo-2-Nitroso-1-Oxinaphthalene-3,6-Disulphocid”. Indian Journal of Chemistry (IJC) 63, no. 5 (May 22, 2024): 500–505. Accessed May 24, 2026. https://or.niscpr.res.in/index.php/IJC/article/view/9289.