High-Throughput qNMR

It is well known that NMR is a very convenient technique for quantification, provided the amount of the material is within the limits of detection in NMR. 

When it comes to the actual calculations, this is a very straightforward process that does not require any fancy mathematics. Typically you will select the most convenient signal(s) or multiplet(s) in your spectrum and calculate the integral which can then be mapped to the corresponding concentration units by using a scaling factor that was previously calculated using some internal or external references.

read all at

http://nmr-analysis.blogspot.in/2012/12/high-throughput-qnmr.html