Electrodeposited polyaniline as a fiber coating for solid‐phase microextraction of organochlorine pesticides from water

Abstract

The study on the performance of polyaniline as a fiber coating for solid-phase microextraction (SPME) purposes has been reported. Polyaniline coatings were directly electrodeposited on the surface of a stainless steel wire and applied for the extraction of some organochlorine pesticides (OCPs) from water samples. Analyses were performed using GC-electron capture detection (GC-ECD). The results obtained show that polyaniline fiber coating is suitable for the successful extraction of organochlorine compounds. This behavior is most probably due to the porous surface structure of polyaniline film, which provides large surface areas and allowed for high extraction efficiency. Experimental parameters such as adsorption and desorption conditions were studied and optimized. The optimized method has an acceptable linearity, with a concentration range of 1-5000 ng/L. Single fiber repeatability and fiber-to-fiber reproducibility were less than 12 and 17%, respectively. High environmental resistance and lower cost are among the advantages of polyaniline fibers over commercially available SPME fibers. The developed method was applied to the analysis of real water samples from Yangtse River and Tianmu Lake.

Nanomembranes and Nanofibers from Biodegradable Conducting Polymers

“…This was prepared by electrospinning using a special collector, which was crafted by embedding an array of stainless steel probes in a hemispherical plastic dish covered with aluminum foil. Conductive polymers have also attracted great interest for the extraction of polar compounds since they have several advantages: a high extraction efficiency for these compounds caused by their inherent and unusual multifunctionality (e.g., ion-exchange properties, π-π interactions, hydrogen bonding, acid-base properties, polar functional groups, and electroactivity) [88,89], and their switchable ion-exchange behavior [90]. A solid-phase extraction method based on conductive PPy hollow fibers, which were fabricated by electrospinning and in situ polymerization over electrospun polycaprolactone (PCL) fibers, has been developed [76].…”

Preparation and evaluation of solid-phase microextraction fiber based on nano-structured copolymer of aniline and m-amino benzoic acid coating for the analysis of fatty acids in zooplanktons

“…These properties make them useful for SPME application [13]. Polypyrrole [8] and polyaniline (PANI) [14][15][16] were the most popular conductive polymers used for the SPME fibers. However, their application was limited by low thermal stability, i.e.…”

Multiwalled Carbon Nanotube Coated on Stainless Steel Wire for Solid-Phase Microextraction of Organochlorine Pesticides in Water

“…Therefore, more robust SPME fibers with a long life and low cost are highly desired. To date, several home-made SPME devices on the basis of mechanically resistant metal wire have been reported (Farajzadeh and Rahmani 2005;Li et al 2008Li et al , 2009Mollahosseini and Noroozian 2009;Rastkari, Ahmadkhanihab, and Yunesian 2009;Jiang et al 2009;Lü et al 2007).…”