Abstract
A functional polymer (hydroxylated polymethacrylate) coated on porous polysulfone hollow fiber membrane (PS-HFM) was used as an adsorbent for the extraction of alkylphenols and bisphenol-A from seawater samples. Analyses of the extracts were performed using gas chromatography-mass spectrometry (GC-MS) after injection-port derivatization using bis(trimethylsilyl)trifluoroacetamide (BSTFA). We term the procedure as polymer-coated hollow fiber microextraction (PC-HFME). Owing to high porosity PS-HFM coated with hydroxylated polymer showed high extraction efficiency. Compared with solid-phase microextraction (SPME), PC-HFME showed good selectivity and sensitivity. Detection limits of alkylphenols and bisphenol-A ranged between 0.07 and 2.34 ng l-1. The linearity range was from 0.01 to 15 μg l-1 and the correlation coefficient (r) up to 0.997. The sensitivity and selectivity of the coated HFM could be potentially tuned by changing the characteristics of the coated hydroxylated polymer. The PC-HFME procedure was applied to the detection of alkylphenols and bisphenol-A in the coastal waters of Singapore.
| Original language | English |
|---|---|
| Pages (from-to) | 274-282 |
| Number of pages | 9 |
| Journal | Journal of Chromatography A |
| Volume | 1087 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - 16 Sep 2005 |
| Externally published | Yes |
Bibliographical note
Funding Information:The authors gratefully acknowledge the financial support of this research by the Agency for Science, Technology and Research of Singapore, the National University of Singapore and the United Nations University, Tokyo, Japan.
Keywords
- Alkylphenols and bisphenol-A
- Endocrine disruptors
- Environmental analysis
- Extraction methods
- Polymer-coated hollow fiber microextraction
- Solid-phase microextraction
ASJC Scopus subject areas
- Analytical Chemistry
- Biochemistry
- Organic Chemistry