BINGOL, D., and M. AKCAY. “Determination of Trace Elements in Leach Solution by Flame Atomic Absorption Spectrometry After Pre-Concentration on Amberlite XAD-4”. Asian Journal of Chemistry 20, no. 5 (March 30, 2010): 4031–4036. Accessed October 3, 2024. https://asianpubs.org/index.php/ajchem/article/view/12726.