Introduction of commercial heating elements of resistance metal alloys as the novel solid-phase microextraction fibers for chromatographic monitoring of organic pollutants

• Published in: Journal of the Iranian Chemical Society 2020-05, Vol.17 (5), p.1111-1121
• Main Authors: Razmi, Habib, Pasandideh, Yalda
• Format: Article
• Language: English
• Subjects: Alloy development; Analytical Chemistry; Biochemistry; Chemistry; Chemistry and Materials Science; Chromatography; Environmental monitoring; Fibers; Inorganic Chemistry; Linearity; Nichrome (trademark); Organic Chemistry; Original Paper; Physical Chemistry; Pollutants; Pollution monitoring; Polycyclic aromatic hydrocarbons; Pretreatment; Solid phases
• ISSN: 1735-207X; 1735-2428
• DOI: 10.1007/s13738-019-01843-8

In this work, two novel coiled solid-phase microextraction (C-SPME) fibers based on resistance metal alloys named aluchrom and nichrome were developed for the first time. The coiled fibers were easily prepared by using two different cost-effective commercial heating elements. The quick-designed extraction fibers showed a unique ability to adsorption of target analytes and therefore were employed without any pre-treatment and special coatings. To investigate the efficiency of proposed methods, the prepared coiled fibers were used to the solid-phase microextraction of some polycyclic aromatic hydrocarbons (PAHs) from standard and real samples followed by high-performance liquid chromatographic analysis. In optimum conditions, good linearity in the range of 1.0–326 and 2.5–400 μg L −1 has been achieved for aluchrom and nichrome fibers, respectively. By applying aluchrom and nichrome, limit of detection in the range of 0.17–1.49 and 0.18–3.28 μg L −1 was obtained for four selected PAHs. Furthermore, the intra-day and inter-day relative standard deviations (at the concentration of 25 μg L −1 of each target), for the aluchrom, were in the range of 3.22–9.62% and 4.15–9.98% and those for the nichrome fiber were in the range of 3.23–8.43 and 4.55–9.69%, respectively. Moreover, the prepared C-SPME fibers resulted in better repeatability and short analysis time, promising analytical applications of the proposed SPME fibers for routine PAHs analysis.