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Ionic-liquid-mediated poly(dimethylsiloxane)- grafted carbon nanotube fiber prepared by the sol-gel technique for the head space solid-phase microextraction of methyl tert-butyl ether using GC.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Vatani, Hossein Yazdi, Ali Sarafraz |
| Copyright Year | 2014 |
| Abstract | A headspace solid-phase microextraction method was developed for the preconcentration and extraction of methyl tert-butyl ether. An ionic-liquid-mediated multiwalled carbon nanotube-poly(dimethylsiloxane) hybrid coating, which was prepared by covalent functionalization of multiwalled carbon nanotubes with hydroxyl-terminated poly(dimethylsiloxane) using the sol-gel technique, was used as solid-phase microextraction adsorbent. This innovative fiber exhibited a highly porous surface structure, high thermal stability (at least 320°C) and long lifespan (over 210 uses). Potential factors affecting the extraction efficiency were optimized. Under the optimum conditions, the method LOD (S/N = 3) was 0.007 ng/mL and the LOQ (S/N = 10) was 0.03 ng/mL. The calibration curve was linear in the range of 0.03-200 ng/mL. The RSDs for one fiber (repeatability, n = 5) at three different concentrations (0.05, 1, and 150 ng/mL) were 5.1, 4.2, and 4.6% and for the fibers obtained from different batches (reproducibility, n = 3) were 6.5, 5.9, and 6.3%, respectively. The developed method was successfully applied to the determination of methyl tert-butyl ether in different real water samples on three consecutive days. The relative recoveries for the spiked samples with 0.05, 1, and 150 ng/mL were between 94-104%. |
| File Format | PDF HTM / HTML |
| DOI | 10.1002/jssc.201300796 |
| PubMed reference number | 24285506 |
| Journal | Medline |
| Volume Number | 37 |
| Issue Number | 1-2 |
| Alternate Webpage(s) | https://profdoc.um.ac.ir/pubs_files/p11040084.pdf |
| Alternate Webpage(s) | https://doi.org/10.1002/jssc.201300796 |
| Journal | Journal of separation science |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
