The method to determine trace gold in rock salt samples with ion exchange separation and enrichment is approached.
探讨了用离子交换分离富集极谱法测定岩矿样品中的痕量金的方法。
The phase separation extracting (floatation) technique is a new enrichment and separation method developed in recent years.
析相萃取（ 浮选）技术是近年来出现的一种新的分离富集方法。
Method: Based on enrichment culture, blood plate separation, the flask culture and exclusive circle of methods such as oil.
方法：富集培养、血平板分离、摇瓶培养和排油圈测定。
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