Abstract
The sensitivity and accuracy of determination of trichloroethylene using the Fujiwara pyridine-alkali reaction has been improved. The procedure, as outlined, will detect one microgram of trichloroethylene in the aliquot analyzed and concentrations as low as one part per million by volume can be determined. The reproducibility of the method was found to be better than one-half of a microgram of trichloroethylene over the range of zero to 100 micrograms.