氯化银沉淀─火焰原子吸收光谱法测定纯银

Determination of Pure Silver with Silver Nitride Precipitation-Flame Atomic Absorption Spectrometry

用氯化银沉淀─火焰原子吸收光谱法测定含量为99．85％～99．99％的纯银，进行了仪器最佳工作条件选择试验；时间影响试验；精密度试验和对照试验，通过对标准和样品银的多次测定，标准偏差小于0．08％，方法简便、快速、准确．得到满意结果．

Pure silver with the purity of 99. 85%~99. 99% is determined by nitride precipitation-flame atomic absorption spectrometry. The best working conditions for the instrument, the influence of time, precision and comparison are tested. The standard deviation is less than 0.08% through the multiple determination of standard silver and sample silver. The method is simple, time saving and accurate.