ABSTRACT
This chapter briefly discusses the application, chemical properties and physical properties of 1,1,1-trichloroethane. It presents detailed information on the air analysis and analysis of aqueous and nonaqueous samples of 1,1,1-trichloroethane. 1,1,1-Trichloroethane is used as a cleaning solvent and colorless liquid with a mild chloroform-like odor. It is very slightly soluble in water and soluble in organic solvents. During the analysis of aqueous and nonaqueous samples of 1,1,1-trichloroethane, analyte in aqueous samples is extracted by the purge and trap method. Volatile compounds are thermally desorbed and swept onto a gas chromatography (GC) column for separation, and detected by hall electrolytic conductivity detector (HECD), electron capture detector (ECD), or MSD. The aqueous extract or a solution of methanol extract is spiked into water and subjected to the purge and trap concentration. During the air analysis of 1,1,1-trichloroethane, samples are collected in a SUMMA passivated canister under pressure using an additional pump or at subatmospheric pressure by initially evacuating the canister.
