分光光度法测定铂网灰中铂含量

Determination of Platinum in Gray Platinum Network

以氯化亚锡作显色剂，用分光光度法测定铂网灰中的铂，当选择合适实验条件的情况下，铂的测定准确度、重复性较高，校准曲线的相关系数大于0．999，精密度较好，定量测定范围0～50μg／kg，应用本方法测定废铂网灰中的铂，方法简便快捷，并具有良好的选择性，结果令人满意。

With stannous chloride as chromogenic agent, platinum in gray platinum network was determined with spectrophotometry. When selecting the appropriate experimental conditions, accurate of platinum and reproducibility were high, the calibration eurvecorrelation coefficient was greater than 0. 999, the precision was better, and quantitative determination of the scope was 0 -50 mg/kg. This method for determine platinum in waste gray platinum network was simple, fast, good selectivity, and with satisfactory results.