血清代谢组学研究、 什么是医学?
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总的来说，动静脉血的差别不大，血清和血浆的代谢物差别也并没有特别明显，只要取样量一致，样品类型一致，样品不溶血污染，平行性好，都可以做代谢组学的分析。
不知道你要做什么代谢实验，如果是人和有血液的动物的代谢，用血清比较好，血浆中有血细胞，不容易分离
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