Gas Chromatography/Mass Spectrometry (GC/MS) is applied for the separation and identification of a variety of organic compounds. The Unit’s Agilent 7890N GC is connected to an Agilent 5977A single-quadrupole mass-selective detector. The instrument is equipped with a 100-vial autosampler, an NIST02 MS Library (includes 175,000 spectra for 147,000 compounds) and an ACD Labs MS Manager (software package for mass-spectra interpretation and structure elucidation).