Li, Hongwei, Zhangjie Huang, and Weiqun Li. “Determination of Gold by Solid Phase Extraction and Flame Atomic Absorption Spectrometry”. Asian Journal of Chemistry 24, no. 11 (June 29, 2012): 5003–5005. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/9815.