California Water Science Center - Pesticide Fate Research
ANALYTICAL METHODS: Pesticides - Sediments
Smalling, K.L. and Kuivila, K.M., 2008, J. Chromatography A, v. 1210, no. 1, p. 8-18.
A multi-residue method was developed for the simultaneous determination of 85 current-use and legacy organochlorine pesticides in a single sediment sample. Dry sediment was extracted two times with DCM:acetone (50:50 v/v) using microwave-assisted extraction. After gel permeation chromatography, the extract was split in half and subjected to two different clean-up methods (carbon/alumina SPE or Florisil) and analyzed by gas chromatography-mass spectrometry. Method detection limits ranged from 0.6 to 8.9µg/kg dry weight.
U.S. Department of the Interior |
U.S. Geological Survey
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