本文通过实验建立了全自动石墨炉硝酸消解-火焰原子吸收光谱法以测定废水中的银。该方法解决了传统标准方法自动化程度不高等问题,具有简单、快速、检出限低、准确度高等优点。该法检出限为0.005 mg/L,回收率87.2~105.5%,相对标准偏差<1.2%,符合实验对废水中银的测定要求。 In this paper, an automatic graphite furnace nitric acid digestion - flame atomic absorption spectrometry was established to determine the silver in wastewater. The method solves the problem that the traditional standard method has a low degree of automation, has the advantages of simple and fast detecting limit, high accuracy and the like. The detection limit of the method was 0.005 mg / L, the recovery rate was 87.2 ~ 105.5% and the relative standard deviation was less than 1.2%, which accorded with the requirement of determination of silver in wastewater.