Abstract
This document outlines methodology for determination of methylene chloride in air using active air sampling with analysis by thermal desorption GC-MS. The GERSTEL Internal Standard/Dry Purge module is a station that attaches to the MPS rail and is used for automated spiking of internal standards. The ISDP can also be used to dry purge sorbent tubes where excess water or solvent may adversely affect the trapping and transfer of analytes from the adsorbent tube to the GC column.
Keywords
Air sampling, methylene chloride, thermal desorption, gas chromatography, mass spectrometry
