摘要
利用黄原脂棉吸附富集金，用硫脲洗脱后，用碘化钾还原金并释放出一定量的碘。采用Ｉ２ＣＣｌ４萃取光度法测定岩矿中的痕量金，取得了较为满意的结果。
Soak de fatted cotton in solution of sodium hydrate,agitating it for 10min,then take it out ,squeezing alkaline solution out with glass rod.Asgin,immerse the cotton in the solution of carbon sulfide stirring it until the cotton present yellow or light red.This kind cotton is processed which is used to enrich gold.After elution by thiourea,the gold is reduced by potassium iodine,releasing a certain amount of iodine.The trace gold in rock ore is determined by extraction photometric method of I 2 CCl 4,achieving satisfactory results.
出处
《黄金》
CAS
北大核心
1998年第8期52-53,共2页
Gold
