Passive sampling in monitoring of nonylphenol ethoxylates and nonylphenol in aquatic environments
Julkaistu sarjassa
Research report / Department of Chemistry, University of JyväskyläTekijät
Päivämäärä
2012Oppiaine
Soveltava kemiaThe present practices for determining the concentration levels of various
pollutants are in many respects insufficient and for this reason, there is an
urgent need especially to develop more cost-effective sampling methods. In this
study, a novel passive sampling tool (the Chemcatcher®) for monitoring
nonylphenol ethoxylates (NPEOs) and nonylphenol (NP) in aqueous media was
tested. These environmentally harmful substances have been widely used in
different household and industrial applications and they affect aquatic
ecosystems, for example, by acting as endocrine disrupting compounds.
The highest accumulation of NPEOs and NP in laboratory-scale tests was
obtained when using an SDB-XC (standard styrene-divinyl benzene) Empore
disk as a receiving phase (adsorbent) of the passive sampler. The accumulation
of these compounds was then field tested by this technique for two or four
weeks at two sampling sites which had received effluents from e.g. the pulp and
paper industry for decades. In addition, the samplers were exposed in seawater
conditions, although in these cases the results were, mainly due to a too long
sampling time period, only approximate.
In all cases, NPEOs and NP were analysed by high-performance liquid
chromatography coupled with an electrospray ionisation mass spectrometry
(HPLC/ESI-MS). These compounds were also separated from water samples
using solid phase extraction (SPE) pretreatment which showed to be a useful
tool for this purpose. It could be concluded that passive sampling with
Chemcatcher® offers an effective technique suitable for monitoring NPEOs and
NP in watercourses. However, more accurate data (e.g., obtained by LC/MSMS)
on various contaminants are still needed for further method development.
...
Julkaisija
University of JyväskyläISBN
978-951-39-4699-9ISSN Hae Julkaisufoorumista
0357-346XAsiasanat
Metadata
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