Issue 10, 2011
From the journal:

Journal of Environmental Monitoring

Determination of resin acids during production of wood pellets—a comparison of HPLC/ESI-MS with the GC/FID MDHS 83/2 method

Sara Axelsson,*ac   Kåre Erikssonb  and  Ulrika Nilssonc  

* Corresponding authors

a Department of Occupational and Environmental Medicine, Örebro University Hospital, Örebro, Sweden
E-mail: sara.axelsson@orebroll.se

b Public Health and Clinical Medicine, Department of Occupational and Environmental Medicine, Umeå University, Umeå, Sweden

c Department of Analytical Chemistry, Stockholm University, Stockholm, Sweden

Abstract

Resin acids are constituents of natural and technical products of widespread use. Exposure is known to cause health effects in the airways and on the skin. Liquid chromatography/positive ion electrospray-mass spectrometry (HPLC/pos ESI-MS) was investigated for determination of 7-oxodehydroabietic (7-OXO), dehydroabietic (DHAA) and abietic acid (AA) in wood dust-containing air samples as a derivatisation-free alternative to the GC/FID HSE method 83/2, developed by the Health and Safety Executive UK. The resin acid 7-OXO was measured as a marker for oxidised resin acids, which are known to be the main contact allergens in colophonium. The found detection limits were 0.42 ng m−3 for 7-OXO, 5.2 ng m−3 for DHAA and 9.4 ng m−3 for AA, respectively, which are considerably lower than with the GC/FID method (24, 115 and 89 ng m−3). The two methods correlated well, although consistently and significantly lower concentrations of 7-OXO were detected with LC/MS. The higher concentration of this compound with MDHS 83/2 is suggested to be an artefact from the derivatisation step in the presence of soluble wood dust remains.

Graphical abstract: Determination of resin acids during production of wood pellets—a comparison of HPLC/ESI-MS with the GC/FID MDHS 83/2 method

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Article information

DOI
https://doi.org/10.1039/C0EM00543F
Article type
Paper
Submitted
06 Oct 2010
Accepted
02 Aug 2011
First published
26 Aug 2011

J. Environ. Monit., 2011,13, 2940-2945

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Determination of resin acids during production of wood pellets—a comparison of HPLC/ESI-MS with the GC/FID MDHS 83/2 method

S. Axelsson, K. Eriksson and U. Nilsson, J. Environ. Monit., 2011, 13, 2940 DOI: 10.1039/C0EM00543F

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