利用自建的液相射流和双脉冲激光诱导击穿光谱技术(LIBS)实验装置,测定了AlCl3水溶液和混合溶液中Al元素的单脉冲和双脉冲激光诱导击穿光谱,给出了单、双脉冲下的最优LIBS实验参数,在最优化实验条件下,得到AlCl3水溶液和混合溶液中Al元素质量分数的单、双脉冲LIBS检测限分别为26.79×10-6、28.85×10-6和11.93×10-6、14.46×10-6,双脉冲LIBS检测灵敏度比单脉冲明显提高。 The single-pulse and double-pulse laser-induced breakdown spectra of Al in AlCl3 aqueous solutions and mixed solutions were measured by using self-built liquid jet and double pulse laser induced breakdown spectroscopy (LIBS) Under the optimal experimental conditions, the detection limits of single and double pulse LIBS of AlCl3 aqueous solution and mixed solution were 26.79 × 10-6,28.85 × 10-6 and 11.93 × 10-6,14.46 × 10-6, double pulse LIBS detection sensitivity was significantly improved than the single pulse.