how to you determine the quantity of an organic molecule by its NMR spectra?
I think you can only determine the quantity by using an internal standard in your NMR sample. You need to put a known quantity of a standard in, and then you can compare the integral values of your known standard to your unknown molecule.(integral value of standard proton) / (integral value of unknown proton) = (# of moles of standard) / (# of moles of the unknown)Using this equation and plugging in the integral values of one standard proton, one unknown proton, and the number of moles of standard will tell you the number of moles of unknown in the solution.
Content provided by Yahoo Answers.
|