Gas Chromatography

Determination of Carboxylic Acids Present as Esters in Plasticizers and Polymers by Transesterification and Gas Chromatography

“…The gas chromatographic separation of the methyl esters of fatty acids has been intensively investigated (1,4,5) and only the conversion of the fatty acid esters to their methyl esters was of interest in this investigation. Ucon or silicone grease columns are used in this laboratory for separation and analysis of the methyl esters of fatty acids.…”

Portable Instruments Based on Flame Ionization Detectors for Analysis of Air for Trace Organic Constituents.

“…of the hydrogen flame ionization detector for the determination of trace organic constituents based on carbon number has been the subject of a number of investigations (7,9,12). Simplicity of operation and high sensitivity are primary advantages of its use.…”

A Simple Separation Method with a Microfluidic Channel Based on Alternating Current Potential Modulation

“…However, as chemicals became more diverse and complicated due to rapid industrialization, various separation techniques, including chromatography, capillary electrophoresis, and lab-on-a-chip, expanded the applicability of separation to several fields, such as the health-care, medical, environmental science, materials science, and food science fields. Among these separation methods, chromatography has been extensively developed over the past 50 years, − which has consequently led to the development of gas, liquid, and supercritical-fluid chromatographic techniques. Although chromatography has been frequently used because of its excellent separation capability for multiple components present in trace amounts, the long measuring time and easy changes in the experimental parameters cause deterioration of analytes.…”