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    Large volatility range airborne polycyclic aromatic hydrocarbons (PAHs) determination by isotope dilution gas chromatography-mass spectrometry

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    Authors
    Wybraniec S
    Jong APJM de
    Type
    Report
    Language
    en
    
    Metadata
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    Title
    Large volatility range airborne polycyclic aromatic hydrocarbons (PAHs) determination by isotope dilution gas chromatography-mass spectrometry
    Translated Title
    Groot vluchtigheidstraject bepaling van polycyclische aromatische koolwaterstoffen (PAK�s) in de buitenlucht m.b.v. gaschromatografie - isotoopverdunning massa spectrometrie
    Publiekssamenvatting
    Een methode is ontwikkeld voor de meting van poly aromatische koolwaterstoffen (PAK) in de buitenlucht m.b.v. gaschromatografie - isotoopverdunning massa spectrometrie. De methode was ontworpen voor de meting van de grootst mogelijke vluchtigheidstraject binnen de groep inclusief de meestvoorkomende en vluchtige naftalenen. Het monstervolume bedroeg circa 500 m3 bij een bemonsteringssnelheid van ca. 18 m3/h. Het monstername apparaat bevatte drie sorptie trappen voor de simultane bemonstering van resp. de deeltjes gebonden fractie, de weinig vluchtige en de vluchtige PAK�s. De recoverie van de methode bedroeg gemiddeld ca. 90 %. De detectiegrens was circa 5 pg/m3 voor de niet-vluchtig en deeltjes gebonden fractie. Resultaten van toepassing van de methode in een woongebied (Bilthoven) toonden een vrij stabiel profiel van voorkomen van de belangrijkste PAK congeneren in achtergrondlucht. Vergelijking van specifieke verhoudingen van bepaalde PAK congeneren met literatuur gegevens duidde op een belangrijke bijdrage van verkeer aan PAK�s in lucht.
    A method was developed for the measurement for polycyclic aromatic hydrocarbons in ambient air by gas chromatography isotope dilution mass spectrometry. The method was designed to measure the largest possible volatility range of PAHs including the abundant naphthalenes. Samples volumes were approx. 500 m3 in size at a sampling rate of approx. 18 m3/h. The sampler contained three sorption stages for the simultaneous capturing of particle bound and low and high volatile gaseous PAHs, respectively. Recoveries of sampling spikes were on average 90 %. The detection limit was approx. 5 pg/m3 for the high boiling range PAHs. Results obtained showed a quite steady profile for most PAHs in background air in the Netherlands. Comparison of abundance ratios with data in the literature indicate that traffic exhausts were the major source for the PAHs in the area.
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    RIVM
    URI
    http://hdl.handle.net/10029/261702
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