Analysis of Mixtures
Mixtures can be analysed by NMR Spectroscopy, and in many cases all compounds present can be identified. A quantitative determination is also possible in the majority of samples. Mixture analysis can be performed by INFAI using either 1H Spectroscopy or hetero-nuclear NMR Spectroscopy. The method used is dependent on the type of mixture to be analysed and the nature of the problem.
The above example shows a 1H NMR spectra of a mixtures of organic acids and amino acids. All compounds of the mixture can be detected qualitatively and quantitatively.
On the whole, most mixture analyses will be carried out without prior sample preparation. As a result, time-consuming separation, purification and regeneration of single compounds are unnecessary. NMR Spectroscopy for analysis of mixtures may not only characterise a few single substances, but can determine all compounds within the mixture. This considerably increases the information obtained from research project or quality control analyses, thereby contributing to overall cost-reduction.