Chang, Zhixian, Jianying Qu, Ling Zhang, and Deliang Li. “Determination of Amino Group Content on Nanosilicas With P-Aminobenzoic Acid Modified Glassy Carbon Electrode Using Copper(II) As Intermedia”. Asian Journal of Chemistry 23, no. 6 (March 2, 2011): 2424–2426. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/10407.