The Development of a Method for the Determination of Organoarsenicals in Air.
Colovos-G; Hester-N; Ricci-GR; Shepard-LS
NIOSH 1980 Sep:47 pages
A method for detecting and identifying organoarsenical compounds in air is described. Sample collection methods for particulate and vapor forms of methylarsonic-acid (124583) (MMA), dimethylarsenic- acid (75605) (DMA), and para-aminophenylarsonic-acid (98500) (p-APA) are discussed. The detection system utilizing a continuous hydride generation system followed by heated quartz furnace atomization and atomic absorption spectrometry is described. A schematic of the detection system is presented. Detection limits, collection efficiency, testing of sampling and analytical precision, and ruggedness of the apparatus are discussed. Experimental data and results of comparison tests are tabulated. The authors conclude that the method is very precise and accurate for concentrations ranging from 5 to 20 micrograms per cubic meter, with standard deviations from about 14.4 to 4.7 percent.
NIOSH-Contract; Contract-210-77-0134; Air-sampling; Analytical-methods; Organic-compounds; Sampling-methods; Air-quality-measurement; Sampling;
124-58-3; 75-60-5; 98-50-0;
NTIS Accession No.
NIOSH, Division of Physical Science and Engineering, U.S. Department of Health, Education and Welfare, Public Health Service, Center for Disease Control