2024
DOI: 10.1002/bmc.5920
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Gas chromatography mass spectrometer determination of dimethylamine impurity in N,N‐dimethylformamide solvent by derivatization of N,N‐dimethylbenzamide with benzoyl chloride agent

Sayyad Kousrali,
Leela Prasad Kowtharapu,
Tanmoy Mondal

Abstract: This study describes the development of a reliable and linear analytical method for precisely determining dimethylamine impurity in N,N‐dimethylformamide solvent utilizing a benzoyl chloride derivatization reagent and a gas chromatography mass spectrometer. Benzoyl chloride was used to derivatize dimethylamine. At normal temperature, benzoyl chloride combined with dimethylamine, producing N,N‐dimethylbenzamide. This method separated N,N‐dimethylbenzamide using Rtx‐5 amine (30 m × 0.32 mm × 1.50 μm) as the stat… Show more

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