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learnerJXY

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[交流] 液质测定果实中乙酸含量

【求助】本人通过LC-MS测定猕猴桃中的总酸,采用的是0.1%的甲酸溶液作为流动相和样品提取液,样品的测定结果里面在分子量59.0139(乙酸的分子量)的位置是有峰出现的,但是制作的混标各个浓度梯度都测不出来乙酸,想要咨询一下广大虫友,是什么原因,万分感谢!
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