Novel cationic surfactant ion pair based solid phase microextraction fiber for nano-level analysis of BTEX.
Ion pair of cationic surfactant (cetytrimethylammonium bromide) and tungestosilicic acid incorporated in PVC matrix, was used for coating a piece of copper wire as a new high sensitive SPME fiber in extraction and determination of BTEX compounds from the headspace of water samples prior to GC/FID analysis. Under optimum extraction conditions, limits of detection for benzene, toluene, ethylbenzene, p-xylene, m-xylene and o-xylene were found to be 1.18, 5.61, 0.87, 0.29, 0.22 and 0.33 ng L(-1) respectively. Low detection limits, wide linear dynamic ranges, good reproducibility (RSD% 1.48-4.27), high fiber capacity and high mechanical durability are some of the most important advantages of the new fiber.
Institute of Biochemistry & Biophysics (IBB), Tehran University, Tehran, Iran. chem.reza@gmail.com
Reza
R
Hosseinzadeh
Raheleh
R
Tahmasebi
Khalil
K
Farhadi
Ali Akbar
AA
Moosavi-Movahedi
Abolghasem
A
Jouyban
Jalil
J
Badraghi
D001554:Benzene / Q000032:analysis*; D001555:Benzene Derivatives / Q000032:analysis*; D002412:Cations; D036103:Nanotechnology; D052617:Solid Phase Microextraction; D013501:Surface-Active Agents / Q000737:chemistry*; D014050:Toluene / Q000032:analysis*; D014992:Xylenes / Q000032:analysis*
D001555:Benzene Derivatives; D002412:Cations; D013501:Surface-Active Agents; D014992:Xylenes; D014050:Toluene; D001554:Benzene; C004912:ethylbenzene