Development of air-monitoring techniques using solid sorbents.
Los Alamos Scientific Laboratory, Los Alamos, New Mexico, 1978 Jul; :1-68
Development of personal sampling and analytical methods to determine amine and hydrazine (302012) vapors in air was described. The study aimed at creating a monitoring system small enough to analyze the air in a worker's breathing zone without interfering with his performance. The device needed to monitor concentrations ranging from 0.2 to 5 times the standards from period ranges of 15 minutes to 8 hours. Vapor collection, stability, and recovery were analyzed using silica gels and acid coated silica gels. Representative chemicals used included 2-aminoethanol (141435), ethylenediamine (107153), and diisopropylamine (108189). Hydrochloric-acid was added to stabilize the samples for storage and transportation and samples were eluted with methanol/water solvent. The primary amines were reacted with benzaldehyde and analysis was by gas chromatography. The authors provided recommendations for improved analysis of methylhydrazine (60344).
NIOSH-Interagency-Agreement; Interagency-Agreement-77-12; Analytical-methods; Analytical-chemistry; Chemical-analysis; Air-quality-monitoring; Sampling-equipment; Chromatographic-analysis
302-01-2; 141-43-5; 107-15-3; 108-18-9; 60-34-4
NTIS Accession No.
Los Alamos Scientific Laboratory, Los Alamos, New Mexico, 68 pages, Interagency Agreement IA-77-12, 28 references