The composition change of unstable samples such as Na,K, Cu,and Ag in glasses,mineral and fast ionconductors during EPMA analysis process was studied.

• 研究了玻璃、矿物和快离子导体等不稳定样品在电子探针（EPMA）分析过程中，样品中Na、K、Cu和Ag等组份随分析时间变化的特性。