Decreased sensitivity of photoionization detector total organic vapor detectors in the presence of methane

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      <subfield code="a">Decreased sensitivity of photoionization detector total organic vapor detectors in the presence of methane</subfield>
      <subfield code="c">Jonathan E. Nyquist... [et al.]</subfield>
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      <subfield code="a">The reduction in sensitivity of the photovac TIP, TIP-1, and the H-NU101 total organic vapor analyzers equipped with potoionization detectors (PID) to toluene and gasoline in the presence of methane was examined. The results showed an exponential decrease in detector sensitivity, with a reduction of about 30% for 0.5% methane and 90% for 5% methane</subfield>
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      <subfield code="a">Vapores orgánicos</subfield>
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      <subfield code="a">Nyquist, Jonathan E.</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. 51, nº 6, June 1990 ; p. 326-330</subfield>
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