PE(聚乙烯)-双硫腙复膜树脂分离富集原子吸收法测定地质样品中的钯

Determination of palladium in ore after separation and concentration with PE-dithizone double membranes resin by atomic absorption spectrometry

研究了PE(聚乙烯) 双硫腙复膜树脂的合成及其分离富集样品中钯的条件。于pH2.0的HCl介质中,钯定量吸附在PE(聚乙烯)-双硫腙复膜树脂上,用100g L乙二胺-20g LNaOH溶液洗脱,火焰原子吸收光谱法测定。回收率在94.5%～101%之间。可用于实际地质样品中贵金属的分离富集与测定。

The conditions for synthesis of PE(polyethylene)-Dithizone double membranes resin and separation and preconcentration of Palladium in geological samples have been studied. Experiments showed that palladium was enriched on the PE-Dithizone double membrance resin column in pH 2.0 and was eluted using 10% glycol and 2% sodium hydroxide as eluent, and then determined by atomic absorption spectrometry. The recovery of palladium was 94.5%～101%. Results obtained by analysis of some precious metals in geological ore samples are satisfactory.