Rapid Determination of Calcium, Iron, and Zinc in Gluconate Oral Solutions by Solution Cathode Glow Discharge – Atomic Emission Spectroscopy (SCGD-AES). - Zheng, Peichao; Yan, Nantian; Wang, Jinmei; Fei, Guoxing; Ahmad Qazi, Hafiz Imran; Li, Biao; Tian, Hongwu; Dong, Daming; Guo, Lianbo (Analytical Letters, 2025)