| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1164290 | Analytica Chimica Acta | 2014 | 8 Pages |
•A copolymer of pyrrole and phenol was electrosynthesised on steel frit.•Coated frit was used for the first time as a SPE sorbent for PAHs in real samples.•Using the designed device was simple and it needs no vacuum or pressure system.
A conducting copolymer of pyrrole and phenol was electrochemically synthesized on steel frits as a sorbent. The applicability of the frit was assessed for the solid-phase extraction of trace amounts of polycyclic aromatic hydrocarbons (PAHs) in aqueous samples followed by HPLC–UV. The coating produced was very adherent and the scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and FTIR spectrum for the coated frit were studied. The effects of various parameters on the efficiency of the solid-phase extraction process, such as the sample loading rate, elution solvent type, salt effect, volume and flow rate of sample and elution solvent were investigated. Under the optimal conditions, the calibration curves were obtained in the range of 0.1–500 ng mL−1 (r2 > 0.98) and the LODs (S/N = 3) were obtained in the range of 0.01–0.08 ng mL−1. Relative standard deviations (RSDs) for intra- and inter-day precision were 2.7–10.2% and 3.6–11.4%, respectively. The recoveries (8 and 40 ng mL−1) ranged from 79% to 115%. The simplicity of experimental procedure, short sample analysis, high extraction efficiency, and the use of low-cost adsorbent show the potential of this method for routine analysis of PAHs in real samples.
Graphical abstractElectrodeposition and using of the copolymer of pyrrole and phenol for frit-SPE for the enrichment of organic pollutants from real samples and HPLC–UV analysis.Figure optionsDownload full-size imageDownload as PowerPoint slide
