An evaluation of antifouling booster biocides in Gran Canaria coastal waters using SPE-LC MS/MS
A solid phase extraction (SPE) technique for seawater samples coupled to quantification using liquid chromatography tandem-mass spectrometry (LC-MS/MS) is described to quantify relevant antifouling booster biocides of ecotoxicological concern (Diuron, TCMTB, Irgarol 1051 and Dichlofluanid).
The optimised methodology provides a sensitive, easy to use and efficient analytical procedure with detection limits in the range of between 0.1 and 0.2 ng L−1 and appropriate reproducibility (with analytical standard deviations of less than 10%). Spiked recoveries
for all compounds exceeded 72%. The method was tested through a thorough monitoring regime of commercial port and marinas on the island of Gran Canaria (off the north-west coast of Africa) over a period of several months in 2008. Results provide the first data for antifouling booster biocides
in the Canary Islands. Concentrations of Diuron and Irgarol 1051 in samples ranged between 2 and 195 ng L−1 and 2 and 146 ng L−1, respectively. TCMTB and Dichlofluanid were not detected.
Keywords: Dichlofluanid; Diuron; Irgarol 1051; LC-MS/MS; SPE; TCMTB; booster biocides; the Canary Islands
Document Type: Research Article
Affiliations: Department of Chemistry, Faculty of Marine Sciences,University of Las Palmas de Gran Canaria, Las Palmas de GranCanaria, Spain
Publication date: 01 October 2011
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