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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Ngila, J. Catherine Nomngongo, Philiswa N. |
| Copyright Year | 2015 |
| Abstract | An alumina–titania (Al2O3–TiO2) hollow fiber membrane was synthesized using the template method coupled with a sol–gel process. The crystal forms of the mixed oxide hollow fiber was evaluated using X-ray diffraction (XRD). The morphological structure and surface characteristics of the Al2O3–TiO2 hollow fiber were characterized by scanning electron microscopy (SEM) and nitrogen adsorption/desorption BET techniques. The synthesized Al2O3–TiO2 hollow fiber membrane was combined with inductively coupled plasma mass spectrometry for on-line preconcentration and determination of trace amounts of Co, Cr, Mo, Ni, Sb and V in diesel and gasoline samples. The optimization of the experimental parameters affecting the preconcentration and determination of target analytes was performed using a full 24 factorial and central composite designs. Under optimized conditions, limits of detection (LOD) (based on the original sample) and limits of quantification (LOQ) ranged 0.1–0.9 and 0.3–3.0 ng L−1, respectively. The developed method was applied in the determination of trace elements in real diesel and gasoline samples. |
| Starting Page | 72500 |
| Ending Page | 72507 |
| Page Count | 8 |
| File Format | HTM / HTML PDF |
| ISSN | 20462069 |
| Volume Number | 5 |
| Issue Number | 89 |
| Journal | RSC Advances |
| DOI | 10.1039/c5ra12706h |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | X-ray crystallography Factorial Hollow fiber membrane Adsorption Sol\u2013gel process Inductively coupled plasma mass spectrometry Nitrogen Scanning electron microscope Mathematical optimization |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Chemical Engineering |
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