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      <marc:subfield code="a">Isomer specific separation and quantitation of tetrachloro dibenzo-p-dioxins by HRCG and HRGC/MS / </marc:subfield>
      <marc:subfield code="c">F.I. Onuska, R. Wilkinson and K. Terry.</marc:subfield>
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      <marc:subfield code="i">Corrected title: </marc:subfield>
      <marc:subfield code="a">Isomer specific separation and quantitation of tetrachloro dibenzo-p-dioxins by HRGC and HRGC/MS</marc:subfield>
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      <marc:subfield code="a">[Burlington, Ontario : </marc:subfield>
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      <marc:subfield code="a">NWRI contribution ; </marc:subfield>
      <marc:subfield code="v">no. 86-215</marc:subfield>
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      <marc:subfield code="a">"Submitted to: J. High Resol. Chromatogr. Chromatogr. Comm."</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
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      <marc:subfield code="a">"This paper entitled "Isomer Specific Separation and Quantitation of Tetrachloro Dibenzo-p-Dioxins by HRGC and HRGC/MS" describes high resolution narrow-bore gas chromatography (HRGC) and HRGC/mass spectrometry (HS) for the determination of all 22 isomers of tetrachloro dibenzo-p-dioxins in various environmental matrices which enables analysts to report significantly more accurate data for all 22 isomers. It is the first time that relative response factors for all 22 isomers using both the electron capture detector and the electron impact ionization selected ion monitoring has been reported"--Management perspective.</marc:subfield>
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      <marc:subfield code="a">Polychlorinated dibenzodioxins--Analysis</marc:subfield>
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      <marc:subfield code="a">Gas chromatography</marc:subfield>
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      <marc:subfield code="a">Mass spectrometry</marc:subfield>
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      <marc:subfield code="a">Wilkinson, R., </marc:subfield>
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