Issue 89, 2015

Alumina–titania (Al2O3–TiO2) hollow fiber sorptive microextraction coupled to inductively coupled plasma mass spectrometry for determination of trace elements in diesel and gasoline samples

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.

Graphical abstract: Alumina–titania (Al2O3–TiO2) hollow fiber sorptive microextraction coupled to inductively coupled plasma mass spectrometry for determination of trace elements in diesel and gasoline samples

Supplementary files

Article information

Article type
Paper
Submitted
30 Jun 2015
Accepted
20 Aug 2015
First published
20 Aug 2015

RSC Adv., 2015,5, 72500-72507

Author version available

Alumina–titania (Al2O3–TiO2) hollow fiber sorptive microextraction coupled to inductively coupled plasma mass spectrometry for determination of trace elements in diesel and gasoline samples

P. N. Nomngongo and J. C. Ngila, RSC Adv., 2015, 5, 72500 DOI: 10.1039/C5RA12706H

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