主题:请问核磁的定量测试可靠度高吗?

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skyyouth
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Proton qNMR provides an opportunity for routine determination capable of analyzing possibly down to 0.1% level and below of components at the 1% level with 1% error and is well with errors as low as 0.1%, depending on the nature of the sample1.
Reference
Quantitative 1H NMR: development and potential of a method for natural products analysis; Guido F. Pauli, etc.; J. Nat. Prod.; 2005 (68), 133-149.

我个人做过很多核磁定量的工作,无论是与LC/GC还是滴定比较,多是很准确的。对于含量在90以上的组分,精度通常能达到零点几的RSD值。
celan
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原文由 siyuan007008 发表:
看不到全文,领导让我写一篇关于核磁定量是否准确的评估报告,这真是一窍不通啊!


业务领导还是政治领导?写这种报告的意义?
核磁定量,是1HNMR定量还是13CNMR定量?杂核定量?


macroweixin
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我在测核磁过程中感觉,无论是碳谱还是氢谱,只要峰分的开,信噪比比较好的话(可能要扫的时间久点,特别是定量碳谱),其定量还是比较准确的,90%。
原文由 skyyouth 发表:
Proton qNMR provides an opportunity for routine determination capable of analyzing possibly down to 0.1% level and below of components at the 1% level with 1% error and is well with errors as low as 0.1%, depending on the nature of the sample1.
Reference
Quantitative 1H NMR: development and potential of a method for natural products analysis; Guido F. Pauli, etc.; J. Nat. Prod.; 2005 (68), 133-149.

我个人做过很多核磁定量的工作,无论是与LC/GC还是滴定比较,多是很准确的。对于含量在90以上的组分,精度通常能达到零点几的RSD值。
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