N. P. Hill, A. E. Mcintyre, R. Perry
Jun 1, 1983
Citations
0
Influential Citations
21
Citations
Journal
International Journal of Environmental Analytical Chemistry
Abstract
Abstract A multi-residue method has been developed for the analysis of chlorophenoxy acids in sewage and primary sewage sludge. Several different derivatisation techniques were evaluated using standard herbicide compounds. Replicate blank and fortified samples were extracted, derivatised, cleaned up and analysed for herbicide residues. Reproducilibity and the degree of recovery for the entire method were determined. Both packed and capillary columns were investigated for gas chromatographic analysis with detection by electron capture and mass spectrometry. It is recommended that 2-chloroethylation derivatisation in conjunction with capillary column gas chromatography-mass spectrometry detection and quantitation is employed for the analysis of these materials. The analytical scheme developed was found to be applicable for six of the chlorophenoxy herbicides (CPH) under investigation. The degree and reproducibility of CPH recovery are acceptable at a concentration of 2.5μgg−1 (with respect to dry solids) in...