Luo, Tao, Yingtang Li, Chang Liu, and Mousheng Liu. “Supramolecular Dispersive Liquid-Liquid Microextraction and Determination of Copper by Flame Atomic Absorption Spectrometry”. Asian Journal of Chemistry 26, no. 15 (July 16, 2014): 4835–4838. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/26_16_63.