Preparation and characterization of sodium dodecyl sulfate doped polypyrrole solid phase micro extraction fiber and its application to endocrine disruptor pesticide analysis

•Sodium dodecylsulfate doped polypyrrole SPME fiber was prepared.•Pyrrole was electrochemically polymerized on a stainless steel wire.•First attempt for the application of PPy-DS fiber for the analysis of endocrine disruptor pesticides.•Semi volatile pesticide residues in wine were determined by this fiber.•The analysis cost was reduced and high recovery percentages were obtained.

A robust in house solid-phase micro extraction (SPME) surface has been developed for the headspace (HS)-SPME determination of endocrine disruptor pesticides, namely, Chlorpyrifos, Penconazole, Procymidone, Bromopropylate and Lambda-Cyhalothrin in wine sample by using sodium dodecylsulfate doped polypyrrole SPME fiber. Pyrrole monomer was electrochemically polymerized on a stainless steel wire in laboratory conditions in virtue of diminishing the cost and enhancing the analyte retention on its surface to exert better selectivity and hence the developed polymerized surface could offer to analyst to exploit it as a fiber in headspace SPME analysis. The parameters, mainly, adsorption temperature and time, desorption temperature, stirring rate and salt amount were optimized to be as 70 °C and 45 min, 200 °C, 600 rpm and 10 g L−1, respectively. Limit of detection was estimated in the range of 0.073–1.659 ng mL−1 for the pesticides studied. The developed method was applied in to red wine sample with acceptable recovery values (92–107%) which were obtained for these selected pesticides.