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Quantitative NMR using water as internal calibrant

MAGNETIC RESONANCE IN CHEMISTRY (2023)

Hygroscopic Tendencies of Substances Used as Calibrants for Quantitative Nuclear Magnetic Resonance Spectroscopy

Christopher L. Suiter et al.

Summary: A coulometric Karl Fischer titration was used to evaluate the hygroscopic tendencies of several organic compounds commonly used as calibrants for qNMR spectroscopy. All compounds except dimethyl sulfone showed resistance to changes in water content, making them suitable choices for qNMR experiments. On the other hand, dimethyl sulfone absorbed a significant amount of water over 5 weeks at 100% relative humidity, which could compromise qNMR experiments under certain conditions.

ANALYTICAL CHEMISTRY (2021)

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Article Chemistry, Analytical

The qNMR Summit 5.0: Proceedings and Status of qNMR Technology

Gabriel Giancaspro et al.

Summary: The goal of the qNMR Summit is to review the status quo and recent developments in qNMR research and applications, providing a platform for practitioners to discuss potential applications and collaborations. The Summit focuses on standardization of qNMR methodology, metrological and pharmacopeial utility, with presentations on methodology in the pharmaceutical industry and advanced quantitation algorithms.

ANALYTICAL CHEMISTRY (2021)

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Article Biochemical Research Methods