A method for the determination of Trace Ethylene dichloride (EDC) by
prima δB process industrial mass spectrometer was established. The method can be
used for on-line quantitative analysis of trace EDC in the inlet gas on the experimental
device of ethylene epoxidation reaction. Compared with off-line chromatographic
analysis, mass spectrometry analysis is fast and convenient for real-time tracking
of EDC at the inlet of the experimental device, and the error caused by the analysis
results in the sampling process of off-line chromatographic analysis is eliminated.