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基于单脉冲激光诱导击穿光谱(single pulse laser-induced breakdown spectroscopy, SP-LIBS)实验装置,搭建了再加热双脉冲激光诱导击穿光谱(re-heating double pulse laser-induced breakdown spectroscopy, RDPLIBS)系统,实现了黄连中重金属元素Cu和Pb的检测.固定激光脉冲频率为4 Hz,两束激光的总能量为50 mJ,实验优化了增强电荷耦合器件探测延时、脉冲间隔和双激光脉冲能量组合等参数对C