Applicability of microwave-assisted extraction combined with LC-MS/MS in the evaluation of booster biocide levels in harbour sediments

作者：Sanchez Rodriguez Alvaro; Sosa Ferrera Zoraida; Juan Santana Rodriguez Jose

来源：Chemosphere, 2011, 82(1): 96-102.

DOI：10.1016/j.chemosphere.2010.09.064

• Booster biocides
• Diuron
• TCMTB
• Irgarol 1051
• Dichlofluanid
• Microwave-assisted extraction

A new sample treatment method for the determination of four common booster biocides (Diuron, TCMTB, Irgarol 1051 and Dichlofluanid) in harbour sediment samples has been developed that uses liquid chromatography-tandem mass spectrometry (LC-MS/MS) after microwave-assisted extraction, followed by clean-up and a solid phase extraction preconcentration step (MAE-SPE). The effects of different variables on MAE-SPE were studied. The recoveries obtained were greater than 75%, and the relative standard deviation was less than 7%. The detection limits ranged between 0.1 and 0.3 ng g(-1). The developed methodology was successfully applied to the evaluation of the presence of booster biocides in sediment samples from different harbours and marinas of Gran Canaria Island (Canary Islands, Spain).

• 出版日期2011-1