DEVELOPMENT OF HIGHLY RESISTANT FIBERS FOR USE IN SOLID PHASE MICRO EXTRACTION (SPME)

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Author(s):	Rodrigues, Jose Carlos ; Leite, Douglas Will ; Lancas, Fernando Mauro Total Authors: 3
Document type:	Journal article
Source:	BRAZILIAN JOURNAL OF ANALYTICAL CHEMISTRY; v. 1, n. 2, p. 4-pg., 2010-10-01.
Abstract
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-mu m poly (dimethyl siloxane) (PDMS) and evaluated for the extraction of polycyclic aromatic hydrocarbons. (AU)