Please use this identifier to cite or link to this item:
Title: Organotin and Irgarol-1051 contamination in Singapore coastal waters
Authors: Basheer, C. 
Tan, K.S. 
Lee, H.K. 
Keywords: Antifouling paints
Microwave-assisted derivatization
Issue Date: 2002
Citation: Basheer, C., Tan, K.S., Lee, H.K. (2002). Organotin and Irgarol-1051 contamination in Singapore coastal waters. Marine Pollution Bulletin 44 (7) : 697-703. ScholarBank@NUS Repository.
Abstract: The seas surrounding Singapore are principally utilized by the shipping industry but are now also increasingly used for a variety of other purposes, including desalination for supplies of drinking water and intensive aquaculture of food fish. While stringent environmental pollution standards are in place for industrial effluents, there is currently no legislative control over pollution from antifouling paints in Singapore. In this study, the concentrations of toxic antifouling agents tributyltin (TBT), triphenyltin (TPhT) and Irgarol-1051 (2-methylthio-4-tert-butylamino-6-cyclopropylamino-s-triazine) were determined from seawater obtained from 26 locations along and off the coast of Singapore in October and November 2000. These compounds were isolated by liquid-liquid extraction derivatized under controlled microwave heating and quantified by gas chromatography-mass spectrometry. TBT concentrations in seawater ranged between 0.43 and 3.20 μgl-1 with a mean value of 1.40±0.60 μgl-1. The mean values of DBT and MBT were 1.07±0.80μgl-1 and 0.34±0.50μgl-1 respectively, while TPhT concentrations of up to 0.40 μgl-1 were found. Monophenyltin and diphenyltin were not detected in all samples analysed. Irgarol-1051 was found to be present at concentrations of between 3.02 μgl-1 and 4.20 μgl-1 in seawater with a mean value of 2.00±1.20μgl-1. Copyright © 2002 Elsevier Science Ltd.
Source Title: Marine Pollution Bulletin
ISSN: 0025326X
DOI: 10.1016/S0025-326X(01)00330-7
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Jan 20, 2023


checked on Jan 20, 2023

Page view(s)

checked on Jan 26, 2023

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.