Self-doped polyaniline as new polyaniline substitute for solid-phase microextraction

Mehdinia, Ali; Roohi, Fateme; Jabbari, Ali; Manafi, Mohammad Reza

doi:10.1016/j.aca.2010.10.031

Cited by 38 publications

(14 citation statements)

References 61 publications

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“…Therefore there is no need to use an external doping agent in the polymer structure [31]. Following our previous successfully studies on the application of nanostructured self-doped polyaniline [32,33], in this work we also proposed a new strategy to increase the thermal stability of PPY based on self-doping of the polymer. The extraction conditions were optimized using an OA 16 (4 5 ) orthogonal array design (OAD) and the coated fiber was used in the optimized conditions for the analysis of pesticides in the skimmed milk and fruit juice samples.…”

Section: Introductionmentioning

confidence: 98%

A strategy to enhance the thermal stability of a nanostructured polypyrrole-based coating for solid phase microextraction

et al. 2012

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We report on a nanostructured self-doped polypyrrole (SPPy) film that was prepared by an electrochemical technique in an electrolyte containing fluorosulfonic acid as the sulfonation reagent. The film was applied as a new fiber material for solid-phase microextraction (SPME) of the pesticides lindane, heptachlor, aldrin, endosulfans I and II prior to their quantitation by GC with electron capture detection. The SPPy nanoparticles have a diameter of <100 nm. The introduction of covalently bound sulfo groups into the backbone of the polymer resulted in improved temperature resistance (~350°C) and satisfactory extraction efficiency. The thermal stability of the SPPy fiber is superior to common polypyrrole fibers. Extraction was optimized by means of the Taguchi orthogonal array experimental design with an OA 16 (4 5 ) matrix including extraction temperature, extraction time, salt concentration, stirring rate, and headspace volume. The method displays good repeatability (RSD<6%) and linearity (in the range from 0.78 to 100 ng mL −1 ; with an R 2 of >0.998. The detection limits are <0.23 ng mL −1 . The method was successfully applied to the analysis of the pesticides in skimmed milk and fruit juice samples, and recoveries are from 84±1 to 105±1%.

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Section: Introductionmentioning

confidence: 98%

A strategy to enhance the thermal stability of a nanostructured polypyrrole-based coating for solid phase microextraction

et al. 2012

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“…Following our previously published successful studies on the application of nano-structured self-doped polyaniline [22,23], in this study we proposed a new strategy to increase the thermal stability of PT based on self-doping of the polymer. The extraction conditions were optimized using an OA 16 (4 5 ) orthogonal array design (OAD) and the coated fiber was used in the optimized conditions for the analysis of phthalates in water samples.…”

Section: Introductionmentioning

confidence: 99%

Preparation and evaluation of thermally stable nano‐structured self‐doped polythiophene coating for analysis of phthalate ester trace levels

Mehdinia

Bashour

Roohi

et al. 2012

J of Separation Science

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Nano-structured self-doped polythiophene (SPT) electrodeposited in the presence of fluorinated organic acid was applied as a thermally stable conductive polymer-based solid-phase microextraction (SPME) fiber candidate. Quantitative determination of trace levels of phthalate esters including dimethyl phthalate (DMP), diethyl phthalate (DEP), dibutyl phthalate (DBP), and diethylhexyl phthalate (DEHP) was carried out using this novel fiber, coupling with gas chromatography-flame ionization detector (GC-FID). The SPT coating was proved to be stable at high temperatures (∼350°C) with a high extraction capacity and long lifetime (more than 60 times). Improved temperature resistance was obtained by the presence of sulfonated groups in the backbone of polymer. Thermal stability of novel SPT was superior to common polythiophene (synthesized in LiClO(4) ). The extraction procedure was optimized by means of the Taguchi orthogonal array experimental design with an OA(16) (4(5) ) matrix including extraction temperature, extraction time, salt concentration, stirring rate, and headspace volume. The good linearity was obtained for most compounds with correlation coefficients (R(2) ) of between 0.993 and 0.995. The detection limits were lower than 0.12 ng/mL for dimethyl phthalate, DEP, dibutyl phthalate, and diethylhexyl phthalate. The method was successfully applied to the analysis of water samples with the recoveries from 90±1 to 107±1%.

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“…It has gained great popularity in a broad field including environment [2,3], food [4,5], pharmaceutical [6] and biological samples [7,8]. As the applicability of SPME continues to flourish, commercial coating fibers appeared.…”

Section: Introductionmentioning

confidence: 99%

A Facile Solid-Phase Micro-Extraction Fiber Based on Pine Needles Biochar Coating for Extraction of Polychlorinated Biphenyls from Water Samples

Chang

Wang

et al. 2016

Chromatographia

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Self-doped polyaniline as new polyaniline substitute for solid-phase microextraction

Cited by 38 publications

References 61 publications

A strategy to enhance the thermal stability of a nanostructured polypyrrole-based coating for solid phase microextraction

A strategy to enhance the thermal stability of a nanostructured polypyrrole-based coating for solid phase microextraction

Preparation and evaluation of thermally stable nano‐structured self‐doped polythiophene coating for analysis of phthalate ester trace levels

A Facile Solid-Phase Micro-Extraction Fiber Based on Pine Needles Biochar Coating for Extraction of Polychlorinated Biphenyls from Water Samples

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