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See Chinese contents: GB/T 40394-2021 GB/T 40394-2021: Determination of trace trimethylamine in methanol for industrial use -- Gas chromatography mass spectrometry
This document specifies a method for the determination of trace trimethylamine in methanol for industrial use by gas chromatography-mass spectrometry. This document applies to the determination of trimethylamine in methanol for industrial use, where the lower limit of determination is 14 μg/L.
