Polyaniline immobilized on polycaprolactam nanofibers as a sorbent in electrochemically controlled solid-phase microextraction coupled with HPLC for the determination of angiotensin II receptor antagonists in human blood plasma

Esfandiarnejad, Reyhaneh; Sereshti, Hassan; Farahani, Ali

doi:10.1007/s00216-019-01845-8

Cited by 19 publications

(6 citation statements)

References 23 publications

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“…Thus, the eluent is a significant factor with respect to achieving high extraction efficiencies. 22,27 To select a suitable eluent, MeOH, ACN, basic methanol (MeOH/NH 3 , 99.8:0.2%) and basic ACN (ACN/NH 3 , 99.8:0.2%) were tested according to the developed procedure. Using basic ACN as a desorption solvent, the adsorptive layer (GO‐PANI) of the working electrode was separated from the electrode; thus, it was not a suitable desorption solvent.…”

Section: Resultsmentioning

confidence: 99%

“…Conductive polymers are one of the main electrode materials with a wide range of advantageous characteristics, such as hydrophobicity, the capability of establishing π–π and hydrogen bond interactions, possession of polar functional groups, and ion‐exchange ability. 14 Polyaniline (PANI) is the most promising conductive polymer because of its high capacitive features, low cost and ease of synthesis. However, the relatively poor cycling life limits its practical uses.…”

Section: Introductionmentioning

confidence: 99%

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Electrochemically controlled solid phase microextraction based on a conductive polyaniline‐graphene oxide nanocomposite for extraction of tetracyclines in milk and water

et al. 2020

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BACKGROUND Tetracycline antibiotics are employed for human and animal health and for speeding up growth rates. However, their presence in food products and environmental waters has been a concern for some years. Therefore, a variety of sample preparation methods have been developed for the analysis of tetracycline residues in these matrices. RESULTS An electrochemically controlled solid phase microextraction based on a modified copper electrode with polyaniline/graphene oxide (PANI/GO) conductive nanocomposite was developed for the extraction of oxytetracycline, tetracycline and doxycycline before high‐performance liquid chromatography‐UV analysis. PANI/GO was synthesized by in situ chemical oxidative polymerization, characterized by scanning electron microscopy and Fourier‐transform infrared spectroscopy, and bound on the electrode using high purity conductive double‐sided adhesive carbon glue. The significant factors affecting the performance of microextraction were investigated and optimized. Under the optimized conditions [sample, 15 mL; sorbent, 10 mg; pH, 3.0; electroextraction voltage, −0.9 V; electroextraction time, 20 min; eluent (MeOH/NH3), 500 μL; and desorption time, 5 min], the limits of detection for target analytes were in the ranges 0.32–1.01 and 2.42–7.59 μg L−1 in water and milk samples, respectively. The linear ranges were 1.06–750 μg L−1 for water and 8.05–750 μg L−1 for milk samples. The intra‐day and inter‐day precisions were 2.32–3.80 and 3.29–4.25, respectively. The method was applied to the determination of analytes in milk and water samples with different fat contents, and the recoveries were obtained in the range 71–104%. CONCLUSION The developed electro‐microextraction method provides a facile, rapid, cost‐effective, sensitive and efficient promising procedure for the extraction of antibiotics in complex matrices. © 2020 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrochemically controlled solid phase microextraction based on a conductive polyaniline‐graphene oxide nanocomposite for extraction of tetracyclines in milk and water

et al. 2020

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“…PANI-coated PU electrospun fibers were used in a microfluidic device to extract and spectrophotometrically detect morphine, codeine, and papaverine in urine [274]. PANI-coated polycaprolactam nanofibers were used to adsorb angiotensin II receptor antagonists like valsartan, losartan, and irbesartan from blood plasma via ion exchange [275].…”

Section: Biopurificationmentioning

confidence: 99%

“…CP nanofibers have also been explored for use in separations and purification, because the high-surface-area, porous structures can be used to absorb species or immobilize reactants. Removal/extraction occurs via ion exchange [273], chemical degradation [232,271,272] [239-241], or adsorption [233,234,274,275]. Wearable smart materials can utilize interconversion of heat and electricity [235][236][237]276,277] or capitalize on dynamic optoelectronic behavior [240,241].…”

Section: Conclusion and Future Outlookmentioning

confidence: 99%

Electrospun Conducting Polymers: Approaches and Applications

2022

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Inherently conductive polymers (CPs) can generally be switched between two or more stable oxidation states, giving rise to changes in properties including conductivity, color, and volume. The ability to prepare CP nanofibers could lead to applications including water purification, sensors, separations, nerve regeneration, wound healing, wearable electronic devices, and flexible energy storage. Electrospinning is a relatively inexpensive, simple process that is used to produce polymer nanofibers from solution. The nanofibers have many desirable qualities including high surface area per unit mass, high porosity, and low weight. Unfortunately, the low molecular weight and rigid rod nature of most CPs cannot yield enough chain entanglement for electrospinning, instead yielding polymer nanoparticles via an electrospraying process. Common workarounds include co-extruding with an insulating carrier polymer, coaxial electrospinning, and coating insulating electrospun polymer nanofibers with CPs. This review explores the benefits and drawbacks of these methods, as well as the use of these materials in sensing, biomedical, electronic, separation, purification, and energy conversion and storage applications.

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“…Polyaniline (PANI), due to having various beneficial properties such as hydrophobicity, strong affinity with many inorganic and organic compounds, π-conjugated structure, high sorption capacity, polar groups, resistance to heat and acidic/alkaline solutions, as well as mechanical and chemical stability, is a promising sorbent for extraction methods [18]. In recent years, PANI mixtures were applied as a sorbent in various extraction methods such as SPME [19], SPE [20], and MSPE [21].…”

Section: Introductionmentioning

confidence: 99%

Magnetic solid‐phase extraction of organophosphorus pesticides from apple juice and environmental water samples using magnetic graphene oxide coated with poly(2‐aminoterephthalic acid‐co‐aniline) nanocomposite as a sorbent

Nasiri

Ahmadzadeh

Amiri

2022

J of Separation Science

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An effective magnetic solid-phase extraction method was proposed using magnetic graphene oxide coated with poly(2-aminoterephthalic acid-co-aniline) as a sorbent for preconcentration and extraction of organophosphorus pesticides from environmental water and apple juice samples, and determined using the gas chromatography-mass spectrometry analysis. To approve the successful synthesis of the magnetic nanocomposite, the prepared sorbent was characterized by field emission scanning electron microscopy, X-ray diffraction, vibrating sample magnetometer, and Fourier transforms infrared techniques. The main parameters affecting the extraction efficiency were considered and studied to afford an optimized procedure. Systematic method validation verified its suitable recoveries (89.4-107.3%), and precision (relative standard deviations < 6.8%). The method showed a wide linear dynamic range (0.04-700 ng/mL) with low limits of detection (0.01-0.06 ng/mL) and quantification (0.04-0.21 ng/mL). This method presented good potential and great sensitivity for the pesticides determination.

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Polyaniline immobilized on polycaprolactam nanofibers as a sorbent in electrochemically controlled solid-phase microextraction coupled with HPLC for the determination of angiotensin II receptor antagonists in human blood plasma

Cited by 19 publications

References 23 publications

Electrochemically controlled solid phase microextraction based on a conductive polyaniline‐graphene oxide nanocomposite for extraction of tetracyclines in milk and water

Electrochemically controlled solid phase microextraction based on a conductive polyaniline‐graphene oxide nanocomposite for extraction of tetracyclines in milk and water

Electrospun Conducting Polymers: Approaches and Applications

Magnetic solid‐phase extraction of organophosphorus pesticides from apple juice and environmental water samples using magnetic graphene oxide coated with poly(2‐aminoterephthalic acid‐co‐aniline) nanocomposite as a sorbent

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