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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Letcher, Robert J. Chu, Shaogang |
| Description | Country affiliation: Canada Author Affiliation: Chu S ( Wildlife and Landscape Science Directorate, Science and Technology Branch, Environment Canada, National Wildlife Research Centre, Carleton University, Ottawa, ON K1A 0H3, Canada.) |
| Abstract | A quantitative analytical method was developed to simultaneously detect fluorotelomer alcohols (6:2 FTOH, 8:2 FTOH and 10:2 FTOH) and polyfluorinated sulfonamides (perfluoro-1-octanesulfonamide (FOSA) and N-methylperfluoro-1-octanesulfonamide (NMeFOSA)) in biotic samples with liquid chromatography-atmospheric pressure photoionization mass spectrometry (LC-APPI-MS/MS). APPI mass spectra for FOSA and NMeFOSA showed that the major ionization mechanism was not photoionization, whereas for the FTOHs it was photoionization. For FTOHs, a [M+O(2)](-) ion was generated with a similar response as the deprotonated molecular ion [M-H](-). We demonstrated that FTOHs, FOSA and NMeFOSA can be measured in various biota samples using APPI with a minimized matrix effect. Using APPI, the linear response range for the FTOHs was 0-1,000 ng/mL (r(2)>0.9997), and for FOSA and NMeFOSA ranged from 0 to 250 ng/mL (r(2)>0.995). The instrument and method detect limits ranged from 0.16 to 0.63 pg and below 1 ng/g wet weight (w.w.), respectively. For the overall method applied to the test matrices, recovery efficiencies ranged from 73 to 102% for egg homogenate and 89-100% for liver tissue. The present study demonstrates for the first time that a far more response and sensitive approach for the detection and quantification of FTOHs and polyfluorinated sulfonamides is possible using APPI as opposed to electrospray ionization. |
| ISSN | 00219673 |
| Issue Number | 1-2 |
| Volume Number | 1215 |
| e-ISSN | 18733778 |
| Journal | Journal of Chromatography A |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2008-12-26 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Chromatography, Liquid Methods Fluorocarbons Analysis Mass Spectrometry Sulfonamides Animals Atmospheric Pressure Ursidae Journal Article Research Support, Non-u.s. Gov't Validation Studies Discipline Analytical Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Medicine Analytical Chemistry Biochemistry |
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