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九品芝麻官

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[求助] 苯乙烯环氧化反应产物定量--气相色谱内标法如何操作,急!

求解,采用内标法进行定量,该如何具体操作啊。只要详细地,具体的步骤!!!!:苯乙烯是反应物,产物苯甲醛,苯乙醛,环氧苯乙烷,溶剂

在以Ai/As对wi作图,此时可以求出每一个物质的质量分数,但是接下来要如何求转化率,选择性,收率的?

反应结束后内标物氯苯,是先取一定量的试样,准确称量,然后加入定量的内标物,然后进色谱。请问此时对于内标物浓度,以及量有要求吗?
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