Abstract
An acid-treated Pittsburgh Activated Carbon (PAC) tube for sampling s-tetrachloroethane in air is described that minimizes sample losses through dehydrogenation and dehydrohalogenation reactions. Commercially prepared NIOSH charcoal, untreated PAC, and acid-treated PAC tubes are compared as to their effectiveness in stabilizing s-tetrachloroethane. Common homologues and analogues of s-tetrachloroethane cause no interference with the gas chromatographic method. In addition the effectiveness of the untreated PAC and acid-treated PAC tubes was also evaluated for four different chlorinated aliphatic hydrocarbons.
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