I. Bras et al., Monitoring organochlorine pesticides from landfill leachates by gas chromatography-electron-capture detection after solid-phase microextraction, J CHROMAT A, 891(2), 2000, pp. 305-311
Landfill leachates contain significant amounts of organic carbon, nitrogen
and heavy metals as well as other specific trace organic compounds Like org
anochlorine pesticides. In this study a simple and reliable methodology was
improved to detect organochlorine pesticides in leachate samples by using
a previous solid-phase microextraction procedure [with a 100 mu m poly(dime
thylsiloxane) fiber] and chromatographic analysis by GC-electron-capture de
tection. The extraction time, temperature, ionic strength of the solution a
nd sampling of the headspace were the parameters studied. Reproducibility a
chieved values below 20% RSD, and standard addition was used for pesticides
confirmation. (C) 2000 Elsevier Science B.V. All rights reserved.