Development of highly resistant fibers for use in solid phase micro extraction (SPME)

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2010-01-05
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RODRIGUES, J. C.
LEITE, D. W.
LANCAS, F. M.
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Brazilian Journal of Analytical Chemistry
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RODRIGUES, J. C.; LEITE, D. W.; LANCAS, F. M. Development of highly resistant fibers for use in solid phase micro extraction (SPME). Brazilian Journal of Analytical Chemistry, v. 1, n. 2, p. 115-118, 2010.
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The commercially available fibers for solid-phase microextraction (SPME) made of optical fibers are fragile and can be easily broken. Thus, there is a clear need for the development of efficient, simple and highly resistant SPME fibers. This work describes the preparation of highly resistant fibers in which a polymer is coated onto an open tubular fused silica capillary tubing (0.360 mm O.D.) fitted with a stainless steel wire (0.200 mm O.D.) previously inserted and cemented into the capillary tube opening to guarantee higher mechanical resistance. The fiber was coated with 70-μm poly (dimethyl siloxane) (PDMS) and evaluated for the extraction of polycyclic aromatic hydrocarbons.

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