This standard specifies a method for the determination of trace trimethylamine in industrial methanol by gas chromatograph mass spectrometry (GC-MS), which is suitable for the detection of trimethylamine in industrial methanol. The lower limit of determination is 14 pg/L. By converting trimethylamine in methanol samples to trimethylamine muriatic acid salt, and then converting back to trimethylamine, headspace injection is performed, and gas chromatograph mass spectrometry is used for analysis. The standard provides an accurate and standardized detection method for the determination of trimethylamine in industrial methanol, which helps to ensure the mass and safety of methanol products.
| Status | Active |
|---|---|
| CCS | G16 | ICS | 71.080.60 |
| Release Date | 2021-08-20 00:00:00 | Implementation Date | 2022-03-01 00:00:00 |