The methanolic extract obtained from shellfish sample should be dried under nitrogen, keeping the concentration of methanol below 4%.

利用甲醇进行贝类样品的提取后需要进行氮气吹干，样品检测液中的甲醇浓度必须低于4%。

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The methanolic extract obtained from shellfish sample should be dried under nitrogen, keeping the concentration of methanol below 4%.

利用甲醇进行贝类样品的提取后需要进行氮气吹干，样品检测液中的甲醇浓度必须低于4%。

youdao