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      <marc:subfield code="a">Onuska, Francis I., </marc:subfield>
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      <marc:subfield code="a">Chromatography 1990 : </marc:subfield>
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      <marc:subfield code="a">Burlington, Ontario : </marc:subfield>
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      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
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      <marc:subfield code="a">"A review of chromatographic techniques and methodologies based on an extensive literature search covering principle separation methods such as open tubular column gas chromatography, supercritical fluid extraction and supercritical fluid chromatography. This review is updated every two years for the biennal review"--Abstract.</marc:subfield>
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      <marc:subfield code="a">Includes abstract and management perspective in English and French.</marc:subfield>
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      <marc:subfield code="a">Gas chromatography</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-90-124-eng.pdf</marc:subfield>
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