Jaggi, Sandeep, and Usha Gupta. “Solid Phase Extraction and Preconcentration of Ni(II) Using 1-(2-Pyridylazo)-2-Naphthol) (PAN) Modified β-Cyclodextrin Butanediol Diglycidyl Ether Polymer As a Solid Phase Extractant”. Macedonian Journal of Chemistry and Chemical Engineering 32, no. 1 (June 15, 2013): 57–67. Accessed April 26, 2024. https://mjcce.org.mk/index.php/MJCCE/article/view/86.