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绿茶147

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[求助] 气相中在苯甲醛与苯甲醛出峰中间的物质

研究生一枚,最近大半年一直在做苯甲醇反应生成苯甲醛的反应,用的乙腈,乙腈易挥发,所以测出来的苯甲醛浓度偏大,苯甲醇浓度不怎么降,想加个内标,请问大家知道有哪些物质能出峰在苯甲醛与苯甲醇中间呢?有什么样的选择要求呢?我可以选择哪些物质进行一下测试呢?谢谢了
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