Abstract
Quantitative NMR (qNMR) is employed to determine the purity of reagents used as standards for HPLC quantification in the Japanese Pharmacopoeia (JP) and has become recognized as a new absolute quantification method in various fields such as pharmaceuticals, foods, and food additives. This report outlines how and why qNMR has been adopted as an official method in the JP and introduces its progression from JP16 to JP18. The results of a survey of companies in the Japan Pharmaceutical Manufacturers' Association regarding how and when to use qNMR from development to manufacturing stages are introduced. The issues involved in the expansion of the use of qNMR in the field of chemical pharmaceuticals in 2017 are discussed and how these were resolved.
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