An electropolymerized aniline-based fiber coating for solid phase microextraction of phenols from water

Bagheri, Habib; Mir, Ali Alinejad; Babanezhad, Esmaeil

doi:10.1016/j.aca.2004.10.040

Cited by 195 publications

(81 citation statements)

References 36 publications

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“…These values were mostly below the existing concentrations in available studies of human exposure [13,14,19]. The LODs were comparable to those obtained by LC-MS/MS [4], GC-MS or GC-FID/ECD [13,41,42] analysis. The good sensitivity was attributed to large volume injection and the online SPE procedure.…”

Section: Quality Control and Performance Of Methodssupporting

confidence: 55%

Direct analysis of eight chlorophenols in urine by large volume injection online turbulent flow solid-phase extraction liquid chromatography with multiple wavelength ultraviolet detection

Guo

Liu

Shi

et al. 2014

Talanta

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a b s t r a c tA novel method for determining eight chlorophenols (CPs) by large volume injection online turbulent flow solid-phase extraction high performance liquid chromatography in urine samples was developed. An aliquot of 1.0 mL urine sample could be analyzed directly after centrifugation. The analytes were preconcentrated online on a Turboflow C18-P SPE column, eluted in back-flush mode, and then separated on an Acclaim PA2 analytical column. Major parameters such as SPE column type, sample loading flow rate and elution time were optimized in detail. Eight CPs from monochlorophenol to pentacholophenol were measured by multiple-wavelength UV detection at four different wavelengths. The limits of detection (LODs) were between 0.5 and 2 ng/mL. The linearity range was from the limit of quantification to 1000 ng/mL for each compound, with the coefficients of determination (r 2 ) ranging from 0.9990 to 0.9996. The reproducibility of intraday and interday relative standard deviations (RSDs) ranged from 0.6% to 4.5% (n ¼5). The method was successfully applied to analyze eight CPs in urine samples. Good recoveries, ranging from 76.3% to 122.9%, were obtained. This simple, sensitive and accurate method provides an alternative way to rapidly analyze and monitor CPs in urine samples, especially for matters of occupational exposure.

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Section: Quality Control and Performance Of Methodssupporting

confidence: 55%

Direct analysis of eight chlorophenols in urine by large volume injection online turbulent flow solid-phase extraction liquid chromatography with multiple wavelength ultraviolet detection

Guo

Liu

Shi

et al. 2014

Talanta

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“…Whereas porous structure increases the effective surface areas of the films, higher extraction efficiency of PANI in comparison with PPY can be expected. However, thermal stability of the PANI film was reported to be about 200 • C [18]. This temperature is rather low and restricts the use of high injection temperature that is required for efficient desorption of less-volatile analytes.…”

Section: Resultsmentioning

confidence: 99%

“…PANI coatings were applied for SPME of phenols [18] and anatoxin [19], PANI doped with polyethylene glycol and PDMS was proposed to extraction and consequent HPLC determination of phenols [20]. PANI coated on the stainless steel wire was suggested for detection of aromatic amines [21] and for trace levels of phthalates in environmental water samples [22].…”

Section: Introductionmentioning

confidence: 99%

Polyaniline-polypyrrole coating for solid phase microextraction

Vičkačkaitė

Ciuvasovaite

2007

Open Chemistry

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Abstract:A procedure for direct electrochemical deposition of polyaniline-polypyrrole blend coating on the surface of stainless steel wire was suggested. Incorporation of polyaniline and polypyrrole into the blend coating was confirmed by infrared spectroscopy. Key parameters (pyrrole, aniline, dopant and sulphuric acid concentrations and deposition potential) influencing the coating's mechanical stability and surface homogeneity were optimised and thermostability of the coating was investigated. A possibility to apply the coating as a new fibre for solid phase microextraction was demonstrated. The coating showed better selectivity toward aromatic, hydrophobic compounds.

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“…Kadir et al (32,33) found that SPME coatings based on overoxidized sulfonated polypyrrole (OSPPY) materials can be used to extract a great variety of cationic analytes, including metallic ions in elctrochemically controlled SPME. Bagheri et al (34) prepared an aniline-based coating to extract phenols from water by the electropolymerization method.…”

Section: Coatings Based On Other Polymeric Materialsmentioning

confidence: 99%

Progress of Solid‐Phase Microextraction Coatings and Coating Techniques

et al. 2006

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(SPME) has been popular as an environmentally friendly sample pretreatment technique to extract a very wide range of analytes. This is partly owing to the development of SPME coatings. One of the key factors affecting the extraction performances, such as the sensitivity, selectivity, and reproducibility, is the properties of the coatings on SPME fibers. This paper classifies the materials used as SPME coatings and introduces some common preparation techniques of SPME coating in detail, such as sol-gel technique, electrochemical polymerization technique, particle direct pasting technique, restricted access matrix SPME technique, and molecularly imprinted SPME technique. IntroductionSolid-phase microextraction (SPME) is a sample preparation technique developed by Pawliszyn et al. (1,2). The process of SPME includes two major operation steps: extraction and desorption. Because both extraction and desorption take place on the coatings, the properties of the coatings determine the performance of SPME. Based on this fact, the development of new coatings has been in great demand for a long time. In recent years, the quantity of papers discussing new coatings for SPME has increased rapidly. In this paper, many of the present coatings are classified, and the common preparation techniques are described in detail. Discussion The classifying of coatingsIn the book Applications of Solid-Phase Microextraction, Górecki (3) sorted the coatings from Supelco (Bellefonte, PA) into two different categories: high-viscosity liquid coatings and solid coatings. He also described the extraction mechanism for both kinds of coatings, respectively. For liquid coatings, the extraction of analytes is obtained by the absorption, in which the analytes can transfer from the surface of coatings to the inside. This kind of coating includes the common stationary phases polydimethylsiloxane (PDMS) and polyacrylate (PA). For solid coatings, the extraction of analytes is based on adsorption, in which the analytes may only stay on the surface of the coatings. Some composite coatings such as PDMS-divinylbenzene (DVB), carbowax-DVB, carbowax-templete resin, etc. from Supelco are solid coatings with porous surfaces. They can only extract analytes by adsorption. During the extraction process, the mechanism of adsorption is much more complex than absorption.With the development of the SPME technique, more and more new materials are utilized in the preparation of coatings. More than half of currently available coatings are solid coatings. However, they are divided by the properties of the materials; the solid coatings are multifarious. Based on organic and inorganic types, there are two primary kinds of coatings: organic and inorganic. Organic coatingOrganic polymer materials are the first kind of material used as SPME coatings. Because traditional SPME fibers utilize fusedsilica fiber as solid-phase carriers, compared with inorganic materials, organic polymer materials are easier to affix with fiber. In addition, at high temperature, the thermal coefficien...

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An electropolymerized aniline-based fiber coating for solid phase microextraction of phenols from water

Cited by 195 publications

References 36 publications

Direct analysis of eight chlorophenols in urine by large volume injection online turbulent flow solid-phase extraction liquid chromatography with multiple wavelength ultraviolet detection

Direct analysis of eight chlorophenols in urine by large volume injection online turbulent flow solid-phase extraction liquid chromatography with multiple wavelength ultraviolet detection

Polyaniline-polypyrrole coating for solid phase microextraction

Progress of Solid‐Phase Microextraction Coatings and Coating Techniques

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