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Quantitative NMR (qNMR)

Moving into the future with an evolution of reliability

Quantitative NMR (qNMR)

Quantitative analysis is essential to our daily lives, supporting activities like health checks, content labeling for foods and pharmaceutical products, and the monitoring of harmful substances. Quantitative NMR (qNMR) has recently been a focus of attention as an even more reliable method of performing quantitative analysis. In order to increase the reliability of quantitative analysis and contribute to the realization of a safe and secure society, JEOL has been involved in the standardization of the qNMR method as a general analysis method that can be used by anyone anywhere, in addition to developing instruments and software and proposing comprehensive analytical support, JIS and ISO standardization was achieved.
We continue to propose practical tools and support for the qNMR method, from sample preparation to analysis, making use of the know-how gained from our past efforts.

What is qNMR ?

Quantitative NMR or qNMR is quantitative analysis using NMR.
The principle difference from other quantitative analytical methods is absolute quantitative analysis method which does not require the same standard substance as an analyte.

Quick Introduction to Quantitative NMR


ISO standardization of qNMR (quantitative NMR) methods

Committee for the Development of qNMR Technology in Japan / qNMR-J

Committee for the Development of qNMR Technology in Japan was established on October 31, 2018. The aim is to be the basis for activities of progress and dissemination. Currently, the focus is on activities by working groups promoting international standardization, but in the future, we aim to be a participatory meeting in which a wide and open exchange can be active. The purpose of establishment details can be confirmed here. We keep posting our activities such as the schedule on our website.


Relevant sites

BIPM (International Bureau of Metrology) is conducting research on analytical methods of standard substances using qNMR. ISRD of maleic acid has been released as information on reference standard for qNMR.
Evaluation of physical properties for use as a reference standard for qNMR is gathered and it is information necessary for selection of reference standard. This information is scheduled to be released on BIPM's HP, and it will be useful for selection of reference standard to implement qNMR.




Application note

Reference information


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