Chiral analysis of organochlorine pesticides in Alabama soils

Chemosphere. 2001 Nov;45(6-7):843-8. doi: 10.1016/s0045-6535(01)00033-9.

Abstract

The enantiomeric composition of organochlorine (OC) pesticide residues was investigated in 32 agricultural and 3 cemetery soils from Alabama. The enantiomeric signatures were similar to those from other soils in US and Canada. The enantiomer fractions (EFs) of o,p'-DDT showed great variability, ranging from 0.41 to 0.57 while the EFs of chlordanes and chlordane metabolites were less variable and differed in general significantly from racemic. Enantioselective depletion of (+)trans-chlordane, (-)cis-chlordane, the first eluting enantiomer of MC5, and enrichment of (+)heptachlor-exo-epoxide and (+)oxychlordane was found in a large majority of the samples with detectable residues. The enantiomeric composition of alpha-hexachlorocyclohexane was racemic or close to racemic.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Agriculture
  • Alabama
  • Environmental Monitoring
  • Hydrocarbons, Chlorinated*
  • Insecticides / analysis
  • Insecticides / chemistry*
  • Isomerism
  • Mortuary Practice
  • Pesticide Residues / analysis
  • Pesticide Residues / chemistry*
  • Soil Pollutants / analysis*

Substances

  • Hydrocarbons, Chlorinated
  • Insecticides
  • Pesticide Residues
  • Soil Pollutants