摘要
聚酰胺作为金的富集剂,从稀王水或盐酸介质中富集微量金,具有吸附速度快、容易洗脱、吸收容量大等优点。在选择的色层条件下,除贵金属和铊(Ⅰ)外,普通金属离子不被吸附。实验表明,聚酰胺可用于分离、富集各类矿物中的微量金。
Trace amount of gold in aqua regia, hydrochloric acid solution can be concentrated by acolumn packed with 2g polyamide, at a flow rate of 10～30ml/min. with a recovery up to99%. The new reagent has a concentrating capacity of 260 mg gold per gram.
关键词
金
富集
聚酰胺
色层分离
Polyamide
gold
column chromatography
