Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/75903
Title: Determination of polycyclic aromatic hydrocarbons in sea water using solid-phase microextraction
Authors: Chee, K.K.
Wong, M.K. 
Lee, H.K. 
Keywords: Natural water
Polycyclic aromatic hydrocarbons
Solid-phase microextraction
Issue Date: 1999
Citation: Chee, K.K.,Wong, M.K.,Lee, H.K. (1999). Determination of polycyclic aromatic hydrocarbons in sea water using solid-phase microextraction. International Journal of Environmental Studies 56 (5) : 689-701. ScholarBank@NUS Repository.
Abstract: Solid-phase microextraction (SPME) technique with poly(dimethylsiloxane)-coated fiber has been employed for the rapid determination of sixteen polycyclic aromatic hydrocarbons (PAHs) present in natural water. The method is solvent-less with the analytes being adsorbed and then desorbed thermally at the injector port of a gas chromato-graph (GC) prior to mass spectrometric (MS) analysis in selective ion monitoring (SIM) mode. The influences of the injector port temperature, desorption time and initial oven temperature on the thermal desorption of PAHs from the fiber were investigated. Then the optimum SPME conditions were applied for the qualitative and quantitative determination of PAHs in environmental samples. The recoveries of the 16 PAHs being spiked into sea water at 50 ng/mL level were 75.3%. The levels of PAHs in the Singapore coastal sea water are between 0.02-8.50 ng/mL using SPME(PDMS).
Source Title: International Journal of Environmental Studies
URI: http://scholarbank.nus.edu.sg/handle/10635/75903
ISSN: 00207233
Appears in Collections:Staff Publications

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