<?xml version="1.0" encoding="UTF-8"?><marc:collection xmlns:marc="http://www.loc.gov/MARC21/slim">
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      <marc:subfield code="a">Azcue, José M., </marc:subfield>
      <marc:subfield code="d">1957- </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
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      <marc:subfield code="a">Comparison of different methods for the digestion and analysis of trace elements in vegetation / </marc:subfield>
      <marc:subfield code="c">Jose M. Azcue and Alena Mudroch.</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Burlington, ON, Canada : </marc:subfield>
      <marc:subfield code="b">National Water Research Institute, Lakes Research Branch, </marc:subfield>
      <marc:subfield code="c">[1993]</marc:subfield>
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      <marc:subfield code="a">computer</marc:subfield>
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      <marc:subfield code="a">online resource</marc:subfield>
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      <marc:subfield code="a">NWRI contribution ; </marc:subfield>
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      <marc:subfield code="a">Title from caption.</marc:subfield>
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      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
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      <marc:subfield code="a">"Quantitative determination of the concentrations of trace elements in vegetation is important in studies dealing with environmental impact, nutrition effects and geochemical exploration. However, the great diversity of sample preparation and analytical methods used in the determination of trace elements in different plant material makes the inter-comparison of results reported in scientific literature difficult. The objective of this investigation was to compare the effects of different sample preparation, particularly cleaning, drying and digestion, used prior to the determination of the concentrations of ten trace elements (As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn) in plant material"--Abstract.</marc:subfield>
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      <marc:subfield code="2">gccst</marc:subfield>
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      <marc:subfield code="2">gccst</marc:subfield>
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      <marc:subfield code="a">Mudroch, Alena, </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Environment Canada.</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">National Water Research Institute (Canada). </marc:subfield>
      <marc:subfield code="b">Lakes Research Branch.</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="v">93-31.</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">2.10 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-93-31-eng.pdf</marc:subfield>
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