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blackcat7876

木虫 (正式写手)

[求助] HS-SPME-GC-MS 内标重复性

两个茶叶样品用顶空固相微萃取,各加入等浓度等体积的内标;得到总离子流色谱图后,两个样品中内标的峰面积相差甚大,可以将每个物质的峰面积除去内标的峰面积后,进行归一化得各物质的百分含量来对这两个茶叶的气味含量进行比较分析吗?这样做半定量数据结果是否可信呢?
看很多文献里面不加内标得到物质峰,归一化后,对几个不同样品中物质含量百分比进行比较分析,这样是不是很不可信呢?

[ Last edited by blackcat7876 on 2013-3-20 at 22:23 ]
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liyuy0921

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你最后怎么弄的啊?是不是可以做外标(标准曲线)啊?
2楼2015-04-23 18:03:23
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