Payehghadr, Mahmood. “Flame Atomic Absorption Determination of Ultra-Trace Zinc in Environmental Samples After Pre-Concentration by Solid Phase Extraction”. European Journal of Chemistry 8, no. 3 (September 30, 2017): 305–309. Accessed May 2, 2024. https://www.eurjchem.com/index.php/eurjchem/article/view/1587.