Analysis of Trace Level Perchlorate in Drinking Water and Ground Water by Electrospray Mass Spectrometry

摘要

A new method involving the use of electrospray mass spectrometry was developed for the detection of trace levels of perchlorate in ground water and drinking water. Electrospray mass spectrometry was shown to be both sensitive and selective for the detection of perchlorate in aqueous matrices. The method detection limit was calculated to be 0.38 ppb. improvement of more than order of magnitude over the currently accepted method. Percent recovery for the detection of perchlorate with this method was found to be 82.4%.