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- W2048449747 endingPage "2767" @default.
- W2048449747 startingPage "2758" @default.
- W2048449747 abstract "We report on the fabrication and performances of a solid-phase microextraction (SPME) fiber based on a stainless steel wire coated with a covalently attached polyacrylonitrile (PAN)/multi-walled carbon nanotubes (MWCNTs) composite. This new coating is obtained by atom transfer radical polymerization (ATRP) of acrylonitrile mixed with MWCNTs. ATRP is initiated from 11-(2-bromo-2-methylpropionyloxy)-undecyl-phosphonic acid molecules grafted on the wire surface via the phosphonic acid group. The extraction performances of the fibers are assessed on different classes of compounds (polar, non-polar, aromatic, etc.) from water solutions by headspace extraction. The optimization of the parameters affecting the extraction efficiency of the target compounds was studied as well as the reproducibility and the repeatability of the fiber. The fibers sustain more than 200 extractions during which they remain chemically stable and maintain good performances (detection limits lower than 2 μg/l, repeatability, etc.). Considering their robustness together with their easy and inexpensive fabrication, these fibers could constitute promising alternatives to existing products." @default.
- W2048449747 created "2016-06-24" @default.
- W2048449747 creator A5001512429 @default.
- W2048449747 creator A5010594649 @default.
- W2048449747 creator A5039144251 @default.
- W2048449747 creator A5050069258 @default.
- W2048449747 creator A5056179430 @default.
- W2048449747 date "2010-04-01" @default.
- W2048449747 modified "2023-09-28" @default.
- W2048449747 title "Preparation of a polyacrylonitrile/multi-walled carbon nanotubes composite by surface-initiated atom transfer radical polymerization on a stainless steel wire for solid-phase microextraction" @default.
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