<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>James E. Madsen</dc:contributor>
  <dc:contributor>Jeffrey R. Deacon</dc:contributor>
  <dc:contributor>William T. Foreman</dc:contributor>
  <dc:creator>Thomas J. Leiker</dc:creator>
  <dc:date>1995</dc:date>
  <dc:description>A method for the determination of chlorinated organic compounds in aquatic tissue by dual capillary-column gas chromatography with electron-capture detection is described. Whole-body-fish or corbicula tissue is homogenized, Soxhlet extracted, lipid removed by gel permeation chromatography, and fractionated using alumina/silica adsorption chromatography. The extracts are analyzed by dissimilar capillary-column gas chromatography with electron-capture detection. The method reporting limits are 5 micrograms per kilogram (&amp;mu;g/kg) for chlorinated compounds, 50 &amp;mu;g/kg for polychlorinated biphenyls, and 200 &amp;mu;g/kg for toxaphene.</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.3133/ofr94710W</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>U.S. Geological Survey</dc:publisher>
  <dc:title>Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of chlorinated pesticides in aquatic tissue by capillary-column gas chromatography with electron-capture detection</dc:title>
  <dc:type>reports</dc:type>
</oai_dc:dc>