Determination of 4,4'-bipyridine vapor

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      <subfield code="a">Determination of 4,4'-bipyridine vapor</subfield>
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      <subfield code="a">Paraquat has been extensively used as a herbicide in Taiwan because of its superior herbicidal effect. 4,4'-bipyridine is the major intermediate product in paraquat manufacturing. In this paper, the development and validation of an air-sampling method that used XAD-2 for the collection of 4,4'-bipyridine gas is described. Also, this study assessed the desorption efficiency, recovery, and stability of sorbent 4,4'-bipyridine</subfield>
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      <subfield code="a">American Industrial Hygiene Association journal</subfield>
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      <subfield code="t">American Industrial Hygiene Association journal</subfield>
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      <subfield code="g">Vol. 53, nº 8, August 1992 ; p. 514-518</subfield>
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