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

Sample preparation is the backbone of any analytical procedure; it involves extraction and pre-concentration of the desired analytes; often at trace levels. The present article describes the applications of nanomaterials (carbon based inorganic and polymeric materials) in miniaturized extraction such as solid phase micro-extraction, stir-bar sorptive extraction, liquid phase micro-extraction, and dispersive liquid phase micro-extraction in the analyses of aqueous samples. The nanoparticles used for micro-extractions are discussed on the basis of their chemical natures. The synthetic route and the preparation of nanomaterials are described along with the optimization strategies for microextraction. A comparison between the conventional materials and nanomaterials for micro-extraction is proposed.The key roles of the nanomaterials for the micro-extraction of different analytes such as drugs, pesticides, polycyclic aromatic hydrocarbons, proteins and peptides from aqueous samples are reported. The use of nanomaterials, combined with miniaturized micro-extraction techniques, proved to be highly promising for sample preparation of various matrices with analytes at trace levels.

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“…Therefore, the derivatives of these polymers could also be used as significant polymeric materials for micro-extraction strategies (130,131).…”

Section: Polymeric Nanomaterialsmentioning

confidence: 99%

Micro-extraction of Xenobiotics and Biomolecules from Different Matrices on Nanostructures

Sanagi

Hussain

Ibrahim

et al. 2014

Separation & Purification Reviews

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“…It was reported that the polymerization of aniline in the presence of BMIPF 6 can enhance the thermal stability of the PANI film (Gao et al, 2004) and the enhanced temperature resistance may be due to the introduction of fluorine into the polymeric network (Mecerreyes et al, 2002). Later on, a novel nano-structured copolymer of aniline and m-aminobenzoic acid (m-ABA), with a diameter lower than 75 nm, was introduced as a SPME coating for isolation of saturated fatty acids in zooplanktons (Mehdinia et al, 2010). Improved temperature resistance (up to 350 °C), relatively improved lifetime (more than 50 extractions) and satisfactory extraction efficiencies were obtained by incorporating carboxylate groups into the framework of PANI.…”

Section: Nanocomposite-based Coatingsmentioning

confidence: 99%

2 Solid-Phase Microextraction and Related Techniques

Bagheri¹,

Piri‐Moghadam²,

Naderi³

et al. 2014

Miniaturization in Sample Preparation

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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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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

Cited by 25 publications

References 44 publications

Micro-extraction of Xenobiotics and Biomolecules from Different Matrices on Nanostructures

Micro-extraction of Xenobiotics and Biomolecules from Different Matrices on Nanostructures

2 Solid-Phase Microextraction and Related Techniques

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

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