Abstract
An overview of the various methods of analysis, in environmental studies, which utilize gas chromatography (GC), liquid chromatography (HPLC), and ion chromatography(IC) is presented. In many cases the samples must be prepared for final measurement by employing other analytical techniques; eg., extrac-tion(liquid-liquid, both micro and macro scale; solid-phase(SPE); supercritical fluid(SFE); headspace equili-bration(HSGE); etc.). Details of the various methods will not be given but descriptive explanations and pertinent references will be furnished. Theoretical aspects of the various techniques will be referenced adequately for those not familiar with the methodologies. Since most of these methods are validated by the United States Environmental Protection Agency (USEPA) addresses where the methods may be obtained will also be given.