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

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.