The use of electrospray ionization (ESI) high-field asymmetric waveform ION MOBILITY MASS SPECTROMETRY (FAIMS-MS) FOR THE ANALYSIS OF HALOACETIC ACIDS (HAAS) IN DRINKING WATER

摘要

A new method that combines electrospray ionization mass spectrometry with non-chromatographic analyte separation has been shown to be a highly sensitive and rapid method for the analysis of haloacetic acids in drinking water. The technique, known as electrospray ionization - high field asymmetric waveform ion mobility spectrometry - mass spectrometry (ESI-FAIMS-MS), allows detection limits rivaling those of GC-based methods, but with the advantage of no sample work-up, derivatization or chromatrographic separation required. Good comparison with EPA Method 552.2 for DCAA and TCAA in different municipal drinking waters is observed.