Preparation by low-temperature nonthermal plasma of graphite fiber and its characteristics for solid-phase microextraction
Luo, F; Wu, ZC; Tao, P; Cong, YQ
HERO ID
496515
Reference Type
Journal Article
Year
2009
Language
English
PMID
| HERO ID | 496515 |
|---|---|
| In Press | No |
| Year | 2009 |
| Title | Preparation by low-temperature nonthermal plasma of graphite fiber and its characteristics for solid-phase microextraction |
| Authors | Luo, F; Wu, ZC; Tao, P; Cong, YQ |
| Journal | Analytica Chimica Acta |
| Volume | 631 |
| Issue | 1 |
| Page Numbers | 62-68 |
| Abstract | Low-temperature nonthermal plasma has been used to prepare solid-phase microextraction (SPME) fibers with high adsorbability. long-term serviceability, and high reproducibility. Graphite rods serving as fiber precursors were treated by an air plasma discharged at 15.2-15.5 kV for a duration of 8 min. Sampling results revealed that the adsorptive capacity of the homemade fiber was 2,5-34.6 times that of a polyacrylate (PA) fiber for alcohols (methanol, ethanol, isopropyl alcohol, n-butyl alcohol), and about 1.4-1.6 times and 2.5-5.1 times that of an activated carbon fiber(ACF) for alcohols and BTEX (benzene, toluene, ethylbenzene, and xylenes), respectively. It is confirmed from FTIR (Fourier transform infrared spectrophotometer) and SEM (scanning electron microscope) analyses that the improvement in the adsorptive performance attributed to increased Surface energy and toughness of the graphite fiber. Using gas chromatography (GC)-flame-ionization detector (FID), the limits of detection (LODs) of the alcohols and BTEX ranged between 0.19 and 3.75 mu g L-1, the linear ranges were between 0.6 and 35619 mu g L-1 with good linearity (R-2 =0.9964-0.9997). it was demonstrated that nonthermal plasma offers a fast and simple method for preparing an efficient graphite SPME fiber, and that SPME using the homemade fiber represents a sensitive and selective extraction method for the analysis of a wide range of organic compounds. (C) 2008 Elsevier B.V. All rights reserved. |
| Doi | 10.1016/j.aca.2008.10.025 |
| Pmid | 19046679 |
| Wosid | WOS:000261922600008 |
| Url | https://www.proquest.com/docview/20048893?accountid=171501&bdid=64564&_bd=YSSk1oNB2iJGNUwuYfE8ZcVxM1c%3D |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science WOS:000261922600008 |
| Is Public | Yes |
| Language Text | English |
| Keyword | Solid-phase microextraction; Graphite fiber; Nonthermal plasma; Adsorption; chromatography-mass spectrometry; gas-chromatography; atmospheric-pressure; pencil lead; water; samples; headspace; extraction; spme; sorbent |
| Is Qa | No |