Simple liquid-phase microextraction procedure for environmental analysis

A simple liquid-phase miroextraction technique using a hollow fiber membrane in conjunction with GC-MS was applied to Singapore Coastal waters to detect a wide range of concentration of organochlorine pesticides (OCP), polychlorinated biphenyls (PCB), and PAH. A regional representation of persistent organic pollutants (POP) present in the local marine environment in relation to the various types of coastal infrastructure present, including petroleum refineries, was provided. The concentration of two and three ring aromatics like naphthalene, acenaphthalene, and phenanthrene were lower, whereas five and six member ring compounds were higher in most of the locations. The concentrations of OCP and PCB in northeastern areas of Singapore was extensively polluted than southeast region. It might be containing discharges from the shipbuilding, municipal sewage treatment plant, or ambient deposition from southern petroleum industries. The overall distribution of these POP were summarized. This is an abstract of a paper presented at the 223rd ACS National Meeting (Orlando, FL 4/7-11/2002).