J. Bartulewicz et al., SIMPLE AND RAPID METHOD FOR THE DETERMINATION OF METHYLENE-CHLORIDE, ETHYLENE DICHLORIDE, TRICHLOROETHYLENE AND TETRACHLOROETHYLENE IN ATMOSPHERIC AIR, Chemia Analityczna, 43(5), 1998, pp. 887-895
A simple, rapid and inexpensive method for the determination of methyl
ene chloride, ethylene dichloride, trichloroethylene and tetrachloroet
hylene in atmospheric air is described. The target compounds are sorbe
d on activated charcoal and desorbed with p-xylene; Recoveries amount
to 95%. The extracts are analyzed by gas chromatography with electron
capture detection. Determination limits are much lower than permissibl
e exposure limits developed in Poland.