TAJODINI, N., & MOGHIMI, A. (2010). Study on the Solid Phase Extraction of Co(II)-N,N’- Disalicylideneethylene diamine Chelate with C18 Disk and Its Application in Determination of Trace Cobalt. Asian Journal of Chemistry, 22(7), 4994–5000. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/11704