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。

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？

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%。