目的探讨活化部分凝血活酶时间(APTT)的标准化问题。

Objective To approach the problem of activated partial thromboplastin time (APTT) standardization.

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目的探讨活化部分凝血活酶时间的标准化问题。

Objective To approach the problem of activated partial thromboplastin time standardization.

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方法采用美国标准化委员会的标准化文件EP10 T2 ，选择具有代表性的丙氨酸氨基转移酶（ALT）、血清总蛋白（TP） ，采用酶法测定ALT ，双缩脲法测定TP。

Method U. S Standardization Com mission's standard file EP10-T2 was used to select representative ALT and TP. AL T was determined with the enzyme reaction, TP was determined with biuret reaction .

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