| Title: | Comparison of in-tube sorptive extraction techniques for non-polar volatile organic compounds by gas chromatography with mass spectrometric detection |
| Author(s): | Ridgway K; Lalljie SP; Smith RM; |
| Address: | "Safety and Environmental Assurance Centre, Unilever Colworth, Bedfordshire MK44 1LQ, UK. Kathy.Ridgway@Unilever.com" |
| DOI: | 10.1016/j.chroma.2006.06.105 |
| ISSN/ISBN: | 0021-9673 (Print) 0021-9673 (Linking) |
| Abstract: | "A commercial in-tube sorptive extraction device, known as solid-phase dynamic extraction (SPDE), has been evaluated for the extraction of non-polar volatile aromatic analytes from aqueous solutions in both headspace and liquid injection modes. An automated sampler is used with a gas-tight 2.5 ml syringe equipped with a special needle that is coated on the inside with a non-polar extraction phase. After absorption onto the phase, the analytes were thermally desorbed directly into a GC-MS system. The technique was evaluated for the determination of furan, benzene and toluene. The sensitivity for toluene was greatly improved on using SPDE compared to static headspace. A slight increase in sensitivity was observed for benzene but none for determination of furan. Estimated limits of detection ranged from 0.2 to 2 microg/l" |
| Keywords: | Calibration Gas Chromatography-Mass Spectrometry/*methods Organic Chemicals/*analysis Reference Standards Reproducibility of Results Volatilization; |
| Notes: | "MedlineRidgway, Kathy Lalljie, Sam P D Smith, Roger M eng Comparative Study Research Support, Non-U.S. Gov't Netherlands 2006/07/25 J Chromatogr A. 2006 Aug 18; 1124(1-2):181-6. doi: 10.1016/j.chroma.2006.06.105. Epub 2006 Jul 21" |
