A solid-phase microextraction (SPME) method, coupled with GC-MS, GC-NP
D and GC-FID has been developed for the analysis of 22 nitrogen-contai
ning herbicides in water. A polar poly(acrylate) coated fiber was used
to extract the analytes directly from the samples over the concentrat
ion range 0.1 to 1000 ng/ml. Limits of detection with each of the dete
ctors were determined to be in the ng/l, to sub ng/l levels. Some appl
ications of the method have been demonstrated for soil samples and win
e samples with GC-MS and the latter was quantified by standard additio
n.