Quantitative Analysis of Polycyclic Aromatic Hydrocarbons in Water in the Low-Nanogram per Liter Range with Two-Step Laser Mass Spectrometry

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Author(s) Emmenegger, Christian, Kalberer, Markus, Morrical, Bradley D., Zenobi, Renato
Publication Type Journal Items, Publication Status: Published
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Title Quantitative Analysis of Polycyclic Aromatic Hydrocarbons in Water in the Low-Nanogram per Liter Range with Two-Step Laser Mass Spectrometry
Author(s) Emmenegger, Christian
Kalberer, Markus
Morrical, Bradley D.
Zenobi, Renato
Journal or Series Title Analytical chemistry
Volume Number 75
Issue Number 17
Start Page 4508
End Page 4513
ISSN 0003-2700
1520-6882
Publisher American Chemical Society
Publication Place Washington, D.C
Publication Date 2003
Abstract Polycyclic aromatic hydrocarbons (PAHs) are of major concern in all environmental compartments due to the mutagenic and carcinogenic properties of many PAHs. Two-step laser mass spectrometry (L2MS) is a sensitive and selective method to measure PAHs in complex solid matrixes. However, in most studies, L2MS was used for qualitative or semiquantitative analyses. Here we present for the first time a quantitative method analyzing PAHs in water at the nanogram per liter level. PAHs are extracted from a 30-mL water sample with a solid PVC membrane, which is then directly measured by L2MS without further treatment. Detection limits are in the low-nanogram per liter range (2-125 ng/L) for skeletal three- to six-ring PAHs. Extraction efficiencies of this method are between 75 and 90%. In a first application, samples from a wastewater treatment plant were measured, showing that microbial activities efficiently decrease PAH concentrations by 75-90%.
DOI 10.1021/ac0340197
Additional Notes Received for review 9 January 2003, Accepted 15 May 2003
Document Type Article
Publication Status Published
Language English
NEBIS System Number 000005465
Source Database ID WOS-000185192300030
SCOPUS-0042839401
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@article{mmnggr2003,
  author = "Emmenegger, Christian and Kalberer, Markus and Morrical, Bradley D. and Zenobi, Renato",
  title = "{Q}uantitative {A}nalysis of {P}olycyclic {A}romatic {H}ydrocarbons in {W}ater in the {L}ow-{N}anogram per {L}iter {R}ange with {T}wo-{S}tep {L}aser {M}ass {S}pectrometry",
  journal = "Analytical chemistry",
  year = 2003,
  volume = "75",
  number = "17",
  pages = "4508--4513",
}


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