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luanch

铁杆木虫 (正式写手)

[求助] 低碳醇液相产物色谱分析用什么为内标

做低碳醇合成,液相产物分析时色谱分析开始用外标法,但每次液相进样老不准,根本达不到误差要求,有时候甚至峰面积差到20%,结果是产率的数据波动很大,现在想改为内标法,但一直搞不清楚内标物选什么好?烃类和我的液相互溶性不好,醇类又是产物中有的,用什么好呢?有没有做过的同学帮我回答一下这个问题。谢谢!
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柳絮虫

新虫 (职业作家)

用邻二苯甲酸二乙酯试一试
2楼2016-05-21 14:21:16
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luanch

铁杆木虫 (正式写手)

引用回帖:
2楼: Originally posted by 柳絮虫 at 2016-05-21 14:21:16
用邻二苯甲酸二乙酯试一试

谢谢!
3楼2016-05-21 16:45:14
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