闪锌矿分析

闪锌矿的主要成分是锌(67％)和硫(32％),同时伴生有有色,分散元素要求分析。本文采用阳离子树脂交换分步淋洗,对砷、硒、碲、锗、锌、铜、镉、钴、镍和铁等元素进行分离与测定。 在盐酸介质中砷、硒和锗很容易与各种阳离子分离,碲的分配系数文献没作介

Chemical Analysis of Blende

The test solution in 0.1 N-F1Cl acidic medium was passed through a colum packed with cation exchange resin, germanium was oxidized to hexes valent by potassium bichromate in advance. As, Se, Te and Ge were determined in the -eluate; after elution with NH4NO3-NH4OH solution, Cu, Zn, Cd, Co and Ni were determined; after elution with 2N-HCl solution, iron was determined. The procedure can be used to determine as many as ten elements by AAS, spectro- y hotometry, polargraphy and induced colorimetry separately.