摘要
用湿法处理样品，以H2SO4＋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．
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 H2SO4 ＋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.
出处
《材料研究与应用》
CAS
2013年第3期202-204,共3页
Materials Research and Application
基金
广东省重大专项"废杂铜环保利用与再生关键技术及装备研究"(2012A090300008)
关键词
钯碳催化剂
钯
测定
原子吸收光谱法
palladium on carbon catalyst
palladium
determination
atomic absorption spectrometry
