Monitoring Chemical Concentration in Plant Atmospheres.
NIOSH 1981 Mar:255-276
Recent advances in the monitoring of chemical concentrations in industrial atmospheres were described. Types of instruments available and the measurement of typical toxic materials with these instruments were discussed. The major types of analytical instrumentation employed electromagnetic detection, electrochemical processes, chromatographic methods, mass spectrometry, or automated wet chemistry. Commonly used instruments were described, as well as newer instruments such as the single wavelength infrared analyzer (SWIR). Three types of process mass spectrometers were described: the magnetic field type, the time of flight type, and the quadrupole mass spectrometer. Electrochemical analyzers and reactive photometry were also discussed. The criteria pollutants most often measured were said to be carbon-monoxide (630080), ozone (10028156), nitrogen oxides and sulfur-dioxide (7446095). Two types of toxic gas analyzers were described, one employing the SWIR principle and one employing solid state electrochemical detection. The author concludes that the continued development of continuous process analyzers for monitoring factory atmospheres indicates that technology will be able to maintain the expanding performance standards required.
Monitoring-systems; Air-monitoring; Analytical-chemistry; Occupational-health; Mass-spectrometry; Electrochemical-analysis; Analytical-instruments; Toxic-gases; Industrial-safety;
630-08-0; 10028-15-6; 7446-09-5;
Symposium on Control of Workplace Hazards in the Chemical Manufacturing Industry, March 11-12, 1981, Philadelphia, Pennsylvania, NIOSH, Cincinnati, Ohio