List of Vendors of Gas Chromatographs: Ametek Process Instruments Agilent Bruker Buck Scientific CDS Analytical DANI Instruments S.p.A. Ellutia Falcon Analytical Forston Labs Galvanic Applied Sciences Inc. GenTech Scientific GOW-MAC Instrument Co. Huberg SAS INFICON Inraq LECO OI Analytical PAC Parker Balston PerkinElmer PG Instruments PID Analyzers Quadrex Seacoast Science Inc. Shimadzu Siemens Corporation Spectrum Chemical Teledyne Tekmar Thermo Fisher Scientific Valco Instruments Co. Waters Zoex Corporation Applications of Gas Chromatographs: The GC can be used in forensic settings to analyze body fluids for blood, to compose testing of fibers and blood evidence, and to detect residue of explosives. Another use of the GC is the analysis of food. The GC analyzes the composition of foods to determine if there are any additives, contaminants, or drugs present. Research Articles Using Gas Chromatographs: “SwRI Pegs Trace Compounds in Body Fluids.” Chemical & Engineering News. 1960. 38(11). Pgs. 36-37. DOI: 10.1021/cen-v038n011.p036. Downing, Donald T., Green, Richard S.; “Methylation of Fatty Acids by Pyrolysis of Their Tetramethylammonium Salts in the Gas Chromatograph.” Analytical Chemistry. 1968. 40(4). Pgs. 827-828. DOI: 10.1021/ac60260a035. Hamlen, R. P., Marr, J. W., Murphy C. B.; “Fuel Cell Membrane Permeation Measurements Using A Gas Chromatograph.” Industrial & Engineering Chemistry Product Research and Development. 1965. 4(4). Pgs. 251-252. DOI: 10.1021/i360016a009.