Please use this identifier to cite or link to this item:
|Title:||Determination of organic micropollutants in rainwater using hollow fiber membrane/liquid-phase microextraction combined with gas chromatography-mass spectrometry|
|Authors:||Basheer, C. |
Polynuclear aromatic hydrocarbons
|Citation:||Basheer, C., Balasubramanian, R., Lee, H.K. (2003-10-17). Determination of organic micropollutants in rainwater using hollow fiber membrane/liquid-phase microextraction combined with gas chromatography-mass spectrometry. Journal of Chromatography A 1016 (1) : 11-20. ScholarBank@NUS Repository. https://doi.org/10.1016/S0021-9673(03)01295-0|
|Abstract:||A simple and rapid liquid-phase microextraction (LPME) method using a hollow fiber membrane (HFM) in conjunction with gas chromatography-mass spectrometry (GC-MS) is presented for the quantitative determination of 16 polycyclic aromatic hydrocarbons (PAHs) and 12 organochlorine pesticides (OCPs) in rainwater samples. The LPME conditions were optimized for achieving high enrichment of the analytes from aqueous samples, in terms of hollow fiber exposure time, stirring rate, sample pH, and composition. Enrichment factors of more than 100 could be achieved within 35min of extraction with relative standard deviations (R.S.D.s) 1.3-13.6% for PAHs and 1.7-13.8% for OCPs, respectively, over a wide range of analyte concentrations. Detection limits ranged from 0.002 to 0.047μgl-1 for PAHs, and from 0.013 to 0.059μgl-1 for OCPs, respectively. The newly developed LPME-GC-MS method has been validated for the analysis of PAHs and OCPs in rainwater samples. Extraction recoveries from spiked synthetic rainwater samples varied from 73 to 115% for PAHs and from 75 to 113% for OCPs, respectively. Real rainwater samples were analyzed using the optimized method. The concentrations of PAHs and OCPs in real rainwater samples were between 0.005-0.162, and 0.063μgl-1, respectively. © 2003 Elsevier B.V. All rights reserved.|
|Source Title:||Journal of Chromatography A|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jul 14, 2018
WEB OF SCIENCETM
checked on Jun 19, 2018
checked on May 4, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.