| Abstrakt: |
Industrial hygienists have generally sampled for industrial solvent vapors either by taking grab samples or by measuring the concentrations with bulky equipment such as the Davis halide meter. A convenient method is described for the determination of solvent vapors in atmospheric samples. A glass tube packed with activated charcoal is used to take an integrated sample. A standard volume of 10 liters is sampled, and the tube is capped and returned to the laboratory for analysis. The activated charcoal is desorbed with carbon disulfide, and an aliquot is introduced into a gas chromatograph equipped with a flame ionization detector. Optimum operating conditions have been established on the gas chromatograph for the separation and analysis of selected solvent vapors of occupational health interest. Data are presented on both the adsorption and the desorption efficiencies of selected solvent vapors, determined by this method. The solvents were benzene, n-butyl acetate, 2-butanone, carbon tetrachloride, chloroform, p-dioxane, ethanol, ethyl ether, iso-octane, per-chloroethylene, pyridine, toluene, trichloroethylene, and xylene. |
