湿法分解-AAS法测定废钯碳催化剂中的钯

Determination of the palladium in the waste palladium on carbon catalyst by wet method

摘要:

用湿法处理样品，以H2 SO4＋ HNO3冒烟硝化除碳，甲酸还原、王水溶解样品，在盐酸介质中用空气-乙炔火焰原子吸收光谱法测定废钯碳催化剂中的钯。结果表明，本法的回收率在98，～102，之间，相对标准偏差小于3，，与灼烧还原法、火试金法的测定结果一致。

Abstract:

Palladium in the waste palladium on carbon catalys was examined by air acetylene flame atomic absorption spectrometry in hydrochloric acid medium through wet processing samples ,removing carbon u-sing H2 SO4 + HNO3 smoking from samples ,reduction by methane acid and dissolving samples by chloro-azotic acid .The results show that the recovery ratio is between 98， and 102， and the relative standard deviation is less than 3， ,which are consistent with the results of fire restoring and the fire assay .