The content of six impurity elements of cadmium, copper, lead, platinum, antimony and tellurium in high content silver was detected by laser ablation inductively coupled plasma mass spectrometry, which had the advantages of green, micro-loss, high efficiency and accuracy. In this paper, the key parameters of the energy density, the ablation spot, and the laser frequency are optimized. The optimal test conditions are: the energy density is 19.4 J/cm2, the laser spot is 60μm,and the laser frequency is 10 Hz. The external standard method and the relative sensitivity factor method were used to test the content of the six elements, and the results of the two methods were consistent. The results showed that the t values were less than 2.57, indicating that the two methods had good consistency. Therefore, in the absence of a suitable series of standard samples, the relative sensitivity method of single standard sample can be considered to test the content of cadmium, copper, lead, platinum, antimony and tellurium in high content silver.
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