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Details

Fast Gas Chromatography for Industrial Hygiene Analysis and Monitoring.

PB91188631

Publication Date	1990
Personal Author	Mouradian, R. F.
Page Count	266
Abstract	Fast gas chromatography systems were developed for use in industrial hygiene and environmental applications. The two systems featured a gas cooled and resistively heated cold trap inlet that produced injection bands with widths of 15 to 25 microseconds. Separation was achieved with 2 to 5 meter lengths of 0.25 millimeter internal diameter capillary column. Flame ionization detectors were used with the detector signal directed to a custom built, fast responding electrometer and a personal computer based data system. One of the systems was designed for the analysis of organic vapors and the other for the analysis of liquids. The study demonstrated that simple liquid mixtures of aromatics and aliphatics could often be separated in 10 seconds or less. During replicate analyses, relative standard deviations for peak areas were 1 to 10%. Relative standard deviations for retention time were less than 1%. Dilute solutions, with concentrations below 50 micrograms/milliliter could not be analyzed due to the poor signal to noise ratios associated with fast responding electrometers.
Keywords	Gas chromatography Volatile organic compounds Organic solvents Theses Chemical analysis Industrial hygiene Air pollution monitoring Laboratory equipment
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	99A - Analytical Chemistry 68A - Air Pollution & Control 94D - Job Environment
Corporate Authors	Michigan Univ., Ann Arbor. School of Public Health.; National Inst. for Occupational Safety and Health, Cincinnati, OH.
Supplemental Notes	Sponsored by National Inst. for Occupational Safety and Health, Cincinnati, OH.
Document Type	Technical Report
NTIS Issue Number	199116

Fast Gas Chromatography for Industrial Hygiene Analysis and Monitoring.

Fast Gas Chromatography for Industrial Hygiene Analysis and Monitoring.
PB91188631

Publication Date	1990
Personal Author	Mouradian, R. F.
Page Count	266
Abstract	Fast gas chromatography systems were developed for use in industrial hygiene and environmental applications. The two systems featured a gas cooled and resistively heated cold trap inlet that produced injection bands with widths of 15 to 25 microseconds. Separation was achieved with 2 to 5 meter lengths of 0.25 millimeter internal diameter capillary column. Flame ionization detectors were used with the detector signal directed to a custom built, fast responding electrometer and a personal computer based data system. One of the systems was designed for the analysis of organic vapors and the other for the analysis of liquids. The study demonstrated that simple liquid mixtures of aromatics and aliphatics could often be separated in 10 seconds or less. During replicate analyses, relative standard deviations for peak areas were 1 to 10%. Relative standard deviations for retention time were less than 1%. Dilute solutions, with concentrations below 50 micrograms/milliliter could not be analyzed due to the poor signal to noise ratios associated with fast responding electrometers.
Keywords	Gas chromatography Volatile organic compounds Organic solvents Theses Chemical analysis Industrial hygiene Air pollution monitoring Laboratory equipment
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	99A - Analytical Chemistry 68A - Air Pollution & Control 94D - Job Environment
Corporate Authors	Michigan Univ., Ann Arbor. School of Public Health.; National Inst. for Occupational Safety and Health, Cincinnati, OH.
Supplemental Notes	Sponsored by National Inst. for Occupational Safety and Health, Cincinnati, OH.
Document Type	Technical Report
NTIS Issue Number	199116