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本文采用镍(Ⅱ)作为基体改进剂,角形全热解石墨平台原子吸收法直接测定了工艺尾液中痕量金,方法测定下限为0.010mg/L;相对标准偏差为<±10%;回收率为93%—104%;分析速度为20—60样/6h。
In this paper, Ni (Ⅱ) was used as matrix modifier, and the angular pyrolytic graphite platform atomic absorption method was used to directly determine the trace amounts of gold in the tail solution. The lower limit of determination was 0.010 mg / L with relative standard deviation <± 10% The rate was 93% -104%; the analysis speed was 20-60 samples / 6h.