Determination of Amino Group Content on Nanosilicas with p-Aminobenzoic Acid Modified Glassy Carbon Electrode Using Copper(II) as Intermedia
Zhixian Chang
Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P.R. China
Jianying Qu
Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P.R. China
Ling Zhang
Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P.R. China
Deliang Li
Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P.R. China ; Environment and Health Engineering Centre of Henan University, Kaifeng 475004, P.R. China
Corresponding Author(s) : Deliang Li
lideliang@henu.edu.cn
Asian Journal of Chemistry,
Vol. 23 No. 6 (2011): Vol 23 Issue 6
In the present work, a p-aminobenzoic acid (p-ABA) modified glassy carbon electrode (GCE) was developed to determine amino group content on g-aminopropyltriethoxysilane modified nanosilica (AMNS) using copper(II) as intermedia by cyclic voltammetry. The method was based on the sensitive response of copper(II) on p-aminobenzoic acid modified glassy carbon electrode and the quantitative reaction of copper(II), 5-nitrosalicylaldehyde and surface amino group content on g-aminopropyltriethoxysilane modified nanosilica. Results were found that the proposed method was of good reproducibility and accuracy and no significant differences from atomic absorption spectroscopy.
Chang, Z., Qu, J., Zhang, L., & Li, D. (2011). 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(6), 2424–2426. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/10407
