Determination of Lead (II) by Phosphorescence Using Manganese-Doped Zinc Sulfide Quantum Dots. - Yang, Jing; Lv, Zhe; Yang, Bo; Guo, Xiangdong; Qu, Feiyong; Miao, Yanping; Li, Dehui; Gao, Hongmei; Li, Wei (Analytical Letters, 2025)