Alumina-based Fiber for Solid Phase Microextraction of Alcohols from Gaseous Samples

Abstract

On the basis of the affinity of alumina towards hydroxyl functional groups, a solid phase microextraction (SPME) fiber was constructed using alumina powder and poly(vinyl chloride) (PVC). Different compositions were tested and alumina:PVC (97:3) was selected as an optimun composition. A piece of silver wire was used as fiber support. The fiber producing was simple and could be completed in a few minutes. The mechanical durability of the fiber was so good that only a single fiber was used during this study. Ethanol, 1-butanol, 2-butanol, 1-pentanol, 2-pentanol and cyclohexanol were selected as target analytes. Finally, ethanol concentration in the fruit juices and vinegar was measured using SPMEcapillary gas chromatography followed by flame ionization detection.

Preparation and characterization of porous carbon material-coated solid-phase microextraction metal fibers

“…In the past years, several approaches including direct use of uncoated fiber [12], immobilized resin [13,14], sol-gel technology [15][16][17][18], molecularly imprinted technology [19][20][21], electrochemical procedures [22][23][24][25] and physical deposition [26,27] have been developed for fiber coating. Among them, immobilized resin and sol-gel technology were widely used.…”

Progress of Solid‐Phase Microextraction Coatings and Coating Techniques

“…They also utilized the special affinity between alumina and hydroxyl groups to extract alcohol compounds with the coating, which was made by the mixture coating of both alumina powder and PVC (97:3) on the silver wire. The extraction effect was excellent, and the detection limit was 0.1 ng/mL (63). The group of Ou (64) also coated γ-Al 2 O 3 on the surface of fused-silica fiber and successfully detected some volatile organic compounds in indoor air.…”

Fe3O4/polyethylene glycol nanocomposite as a solid‐phase microextraction fiber coating for the determination of some volatile organic compounds in water

“…Various techniques have been developed to provide physically covered and chemically or electrochemically bonded fibers. New preparation methods of physical deposition , sol–gel technology , electrochemical procedures , molecular imprinting , on‐fiber derivatization , and membrane SPME have been developed . In recent years, headspace solid–phase microextraction (HS‐SPME) and the combination of this method with GC have been widely developed as effective extraction techniques for many varieties of samples.…”