The use of a solid sorbent as a collection medium for TNT and RDX vapors

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Abstract
Workers in explosive manufacturing plants face potential exposure to trinitrotoluene (TNT) and cyclotrimethylenetrinitramine (RDX) vapors. A method was presented for sampling atmospheric vapors of the military explosives, TNT and RDX with sorbent tubes containing Tenax-GC [gas chromatographic] resin. Vapors were produced by placing TNT and RDX in a heated glass chamber and pulling the generated vapors on to the Tenax with an air sampling pump. Collection efficiencies were determined for concentrations of 2, 1, 0.5, 0.25 and 0.1 times the threshold limit values recommended by the American Conference of Governmental Industrial Hygienists [USA]. Electron capture gas chromatography was used for analyses and quantitation of the collected explosives.

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