本文用乙醇金属离子分级分离法，从新生小牛血清中分离提取胎球蛋白。

We have isolated the fetuin from sera of newborn calves by ethanol fractionation in the presence of zinc and barium ions.

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方法醇类溶剂提取法、离子交换树脂分离法。

Methods Alcohol and strong acid cation exchange resin were used in the extraction and separation.

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即用沉淀分离法提取PV C塑料中的DOP，然后，借助于HPLC法分离测定提取物中的DOP。

The DOP is recovered from the PVC plastics by precipitation separation. It is then separated and determined by HPLC.

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