AUTOMATED MICROEXTRACTION TECHNIQUE FOR THE ANALYSIS OF N-NITROSOAMINES IN WATER

摘要

An automated headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry for the determination of four N-nitrosoamines in groundwater samples is developed. Response surface methodology technique was employed to investigate the optimized extraction conditions of headspace solid-phase microextraction using CombiPAL autosampler. The method was applied to determine the N-nitrosamine concentrations in groundwater samples.

主权项

1: An automated headspace solid-phase microextraction gas chromatography-mass spectrometry method for determining nitrosamine concentration, comprising:
extracting a nitrosoamine-containing aqueous solution sample by contacting the aqueous solution sample with an SPME fiber; placing the nitrosamine-enriched SPME fiber into an injection port of a gas chromatograph; desorbing the nitrosamine-containing analyte from the nitrosamine-enriched SPME fiber; and chromatographing the nitrosamine-containing analyte in the gas chromatograph; and determining the nitrosamine content in the nitrosamine-containing analyte.