A sensing platform of molecular imprinted polymer-based polyaniline/carbon paste electrodes for simultaneous potentiometric determination of alfuzosin and solifenacin in binary co-formulation and spiked plasma

Wadie, Mina; Marzouk, Hoda M.; Rezk, Mamdouh R.; Abdel-Moety, Ezzat M.; Tantawy, Mahmoud A.

doi:10.1016/j.aca.2022.339599

Cited by 35 publications

(18 citation statements)

References 46 publications

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“…Many factors can influence the precision of the SC-ISE, especially temperature and pH among other experimental parameters such as weighing and pipetting. But the high precision reported in our work and similar ion-selective electrodes reported in the literature [38][39][40] can be attributed to the logarithmic nature of potentiometric response with changing the ion concentration (potential difference of 1 mV means a 4 % change in ion activity for a monovalent ion), the accuracy and precision of the measuring device (0.1 mV resolution, + /À 0.2 mV accuracy), the well-controlled measuring parameters such as cell temperature, electrode selectivity, and the presence of a graphene nanocomposite layer which significantly minimized the potential drift and enhanced the repeatability of the SC-ISE (minimum drift and complete reversibility without any memory) are important factors in achieving accurate and precise results of ISE.…”

Section: Potentiometric Sensors Characterizationsupporting

confidence: 85%

Graphene‐based Disposable Electrochemical Sensor for Chlorhexidine Determination

et al. 2022

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In this work, simple, reliable, eco‐friendly, and quantitative electrochemical sensors were developed to detect chlorhexidine Digluconate (CHX) in a variety of dosage forms, including mouthwashes and intimate douches, as well as chlorhexidine in spiked human saliva. Without any sample pre‐treatment or extraction processes, CHX was measured in colored aqueous formulations. Based on carbon screen‐printed electrodes, two potentiometric sensors (sensors I and II), utilizing graphene nanocomposites (Gr‐NC), were designed (SPEs). An ionophore, 2‐hydroxypropyl‐β‐cyclodextrin, was doped into the Poly Vinyl Chloride (PVC) polymeric membrane to improve sensor selectivity.

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Section: Potentiometric Sensors Characterizationsupporting

confidence: 85%

Graphene‐based Disposable Electrochemical Sensor for Chlorhexidine Determination

et al. 2022

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“…biosenzore s ugljikovom pastom. CMCPE u svojem sastavu imaju modifikator kemijskog podrijetla, [28][29][30][31][32][33][34][35][36] dok biosenzori imaju modifikator podrijetlom iz prirode, primjerice alge, 2,37-39 bakterije, 40,41 makromolekule iz biljaka kao što su keratin, hitin i dr. [42][43][44] CPE se modificiraju da bi se poboljšala selektivnost mjerenja. Zbog jednostavnosti pripreme, u najvećem broju slučajeva modifikator se u pastu dodaje zajedno s ostalim komponentama.…”

Section: Uvodunclassified

Renesansa elektroda s ugljikovom pastom; njihove modifikacije i primjene u potenciometrijskim određivanjima farmaceutika

Radić

Bralić²,

Kolar³

2023

Kemija U Industriji

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The development of carbon paste electrodes in the 1970s generated considerable interest in the scientific community, because they offered several advantages over conventional membrane electrodes. At the beginning of the new millennium, the use of carbon nanomaterials as a new trend in their development gave additional impetus. After CPEs were successfully developed for potentiometric determination of more than 70 chemical elements, these electrodes gained additional interest for pharmaceutical and medical applications. This paper reviews the scientific literature of the last decade related to the development of CPEs for the quantitative determination of active pharmaceutical ingredients and their application in real samples.

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“…Electrodes fabrication. The employed carbon paste was obtained through mixing 8.0 g graphite and 2.0 g MWCNTs powders with 4.3 g paraffin oil in a mortar for about 30 min 8 . CPE cavity was packed with this paste.…”

Section: Materials and Reagentsmentioning

confidence: 99%

“…The latter is usually easily handled and fabricated (e.g. using a carbon paste), economically feasible, and widely applicable compared to liquid contact one [3][4][5][6][7][8] . However, SC-ISEs suffer from main obstacle related to the creation of an aqueous layer between the lower solid support and the upper ion selective polymeric matrix.…”

mentioning

confidence: 99%

Two fabricated carbon paste electrodes for novel potentiometric determination of probenecid in dosage form and human plasma

Tantawy

Wahba

Saad

et al. 2022

Sci Rep

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Solid contact ion selective electrodes are extensively utilized owing to their marvelous performance over traditional liquid contact ones. The main drawback of those solid contact electrodes is aqueous layer formation which affects their constancy. Herein and to overcome this common drawback, a carbon paste electrode containing poly(3,4-ethylenedioxythiophene) was constructed and used for determination of probenecid at variant pH values. This modification decreased the potential drift down to 0.8 mV/h and improved its stability over 30 days. A Nernstian slope of − 57.8 mV/decade associated with a linear range of 1.0 × 10−6–1.0 × 10−2 mol/L was obtained. The modified carbon paste electrode successfully detected up to 8.0 × 10−7 mol/L probenecid. Results of this modified carbon paste electrode were also compared to unmodified one.

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A sensing platform of molecular imprinted polymer-based polyaniline/carbon paste electrodes for simultaneous potentiometric determination of alfuzosin and solifenacin in binary co-formulation and spiked plasma

Cited by 35 publications

References 46 publications

Graphene‐based Disposable Electrochemical Sensor for Chlorhexidine Determination

Graphene‐based Disposable Electrochemical Sensor for Chlorhexidine Determination

Renesansa elektroda s ugljikovom pastom; njihove modifikacije i primjene u potenciometrijskim određivanjima farmaceutika

Two fabricated carbon paste electrodes for novel potentiometric determination of probenecid in dosage form and human plasma

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