A potentiometric sensor for the determination of potassium in different baby follow–on milk, water, juice and pharmaceutical samples

Özbek, Oğuz

doi:10.1016/j.jfca.2022.104937

Cited by 18 publications

(7 citation statements)

References 34 publications

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“…The selectivity is achieved through membranes that incorporate ionophores or other selective binding agents, which provide the basis for the sensor's response to particular ionic species, making potentiometric sensors invaluable for ensuring compliance with food safety standards. 15 Conductometric sensors.-Conductometric sensors measure the electrical conductivity of a solution, which changes in the presence of analytes due to the alteration in the ionic strength and mobility. These sensors are based on the principle that the conductance of an electrolytic solution is proportional to the concentration of ionic species, making them useful for applications such as monitoring fermentation processes, where the production or consumption of ions reflects microbial activity.…”

Section: Fundamentals Of Electrochemical Sensorsmentioning

confidence: 99%

Editors’ Choice—Review—Advances in Electrochemical Sensors: Improving Food Safety, Quality, and Traceability

Sakthivel,

Balasubramanian,

Chang-Chien

et al. 2024

ECS Sens. Plus

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Electrochemical sensors have become a pivotal tool in ensuring the safety and security of the global food supply chain, which is crucial for public health, economic stability, and environmental sustainability. Modern food systems, with their complex global distribution and varied processing methods, require advanced solutions for detecting contaminants and maintaining food quality. This review delves into recent advancements in electrochemical food sensor technology, highlighting their operating principles, types, cutting-edge materials, and methods enhancing their effectiveness. These sensors are adept at identifying a broad range of foodborne pathogens, chemical contaminants, and adulterants while monitoring food freshness and quality. Innovations include using nanomaterials and conductive polymers and shifting towards miniaturized, portable devices for on-site and real-time analysis. The review also addresses challenges such as sensitivity, selectivity, and matrix effects, pointing out emerging trends and future research avenues to overcome these hurdles. Regulatory and standardization issues relevant to adopting these technologies in food safety protocols are also considered. Highlighting the last three years, this review emphasizes the indispensable role of electrochemical sensors in boosting food safety and security and the need for ongoing innovation and cross-disciplinary cooperation to advance this area.

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Section: Fundamentals Of Electrochemical Sensorsmentioning

confidence: 99%

Editors’ Choice—Review—Advances in Electrochemical Sensors: Improving Food Safety, Quality, and Traceability

Sakthivel,

Balasubramanian,

Chang-Chien

et al. 2024

ECS Sens. Plus

View full text Add to dashboard Cite

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“…[ 22 ] These techniques have some limitations in terms of certain properties such as high‐energy consumption, the requirement of trained personnel, high cost, time consumption, complex use, and the requirement of sample pretreatment. [ 23,24 ]…”

Section: Introductionmentioning

confidence: 99%

“…[22] These techniques have some limitations in terms of certain properties such as high-energy consumption, the requirement of trained personnel, high cost, time consumption, complex use, and the requirement of sample pretreatment. [23,24] In the present study, we have constructed a potentiometric Cr(III)-selective electrode based on a thiosemicarbazone derivative molecule (Figure 1). The potentiometric performance properties of this developed electrode and its applicability in different samples were further investigated.…”

Section: Introductionmentioning

confidence: 99%

Selective determination of Cr(III) ions with novel potentiometric electrodes

Işıldak

Özbek

Yildiz

et al. 2023

J Chinese Chemical Soc

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BackgroundIonophores in the composition of potentiometric ion‐selective electrodes interact directly with the analyte ion and enable the determination of ionic species in various samples.ObjectivesIn this study, a novel ion‐selective electrode based on 5‐bromosalicylaldehyde thiosemicarbazone was developed for the selective determination of Cr3+ ions.MethodsThe optimum electrode composition contained ionophore, poly (vinyl chloride) (PVC), bis (2‐ethylhexyl) sebacate (BEHS) and potassium tetrakis (p‐chlorophenyl) borate (KTpClPB) in ratios of 4.0: 61.0: 34.0: 1.0 (mg), respectively. Potential measurements were performed using a computer‐controlled multi‐channel potentiometric measurement system.ResultsThe developed Cr (III)‐selective electrode exhibited a low detection limit of 3.96 × 10−6 M over a wide concentration range of 1.0 × 10−5 – 1.0 × 10−1 M (R2: 0.9979). The electrode exhibited good selectivity towards Cr3+ ions among metal ions with different charges. The chromium (III)‐selective electrode, which exhibited highly reproducible results in three different concentration ranges, also had a very fast response time of 5 s.ConclusionsThe developed Cr (III)‐selective electrode were successfully performed in various beverage samples. As a result, the proposed electrode can be an alternative to other analytical methods in the analysis of Cr3+ ions.

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“…14,15 Compared with these analytical methods, potentiometric methods have been used frequently in pharmaceutical drug analysis as a result of their important advantages such as ease of preparation and use, low detection limit, wide linear concentration range, short response time, low cost, high selectivity, high accuracy and long lifetime. [16][17][18][19] However, to the best of our knowledge, there is no previously published method for the determination of CBZ using potentiometry in the literature. The aim of this study is to develop a CBZ-selective potentiometric sensor based on the incorporation of an ion-pair complex of the CBZ and use it for the direct determination of CBZ in various pharmaceutical preparations.…”

Section: Introductionmentioning

confidence: 99%

“…These analytical methods require expensive instruments, high energy consumption, sample pre–treatment and thus are very costly and time–consuming 14,15 . Compared with these analytical methods, potentiometric methods have been used frequently in pharmaceutical drug analysis as a result of their important advantages such as ease of preparation and use, low detection limit, wide linear concentration range, short response time, low cost, high selectivity, high accuracy and long lifetime 16‐19 . However, to the best of our knowledge, there is no previously published method for the determination of CBZ using potentiometry in the literature.…”

Section: Introductionmentioning

confidence: 99%

Development of a potentiometric sensor for the determination of carbamazepine and its application in pharmaceutical formulations

Çetin

Özbek

Erol

2022

J of Chemical Tech & Biotech

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BACKGROUND: Epilepsy is a neurological disorder and its treatment is carried out with anti-epileptic drugs. Carbamazepine has been in use since 1965, as a safe and effective anti-epileptic agent. In this paper, a poly(vinyl chloride) (PVC) membrane carbamazepine selective potentiometric sensor was developed for the determination of carbamazepine in pharmaceutical formulations. Carbamazepine-tetraphenylborate (CBZ-TPB) ion−pair was synthesized as an electroactive component and PVC membrane sensors were prepared with different CBZ-TPB ratios. The membrane with the best analytical properties was determined as the one with 2.0% CBZ-TPB ion-pair, 33.0% PVC and 65.0% o-nitrophenyl octyl ether (o-NPOE). RESULTS:The proposed sensor exhibited linear responses over the concentration range 1.0 × 10 −5 -1.0 × 10 −2 mol L −1 (R 2 = 0.999). The limit of detection was 9.60 × 10 −6 mol L −1 . The developed sensor showed high selectivity against carbamazepine over some ionic species investigated and also over other anti-epileptic drugs. The potentiometric response of the sensor was not affected by pH in the wide pH range of 4.0-9.0 and the response was fast, at ≈10s. CONCLUSION:The fabricated carbamazepine-selective sensor was applied for the determination of carbamazepine contents of some pharmaceutical formulations. The potentiometric measurement results for the pharmaceutical formulations gave results with good agreement with data obtained using UV-visible spectroscopy. As a result, the developed carbamazepine selective potentiometric sensor can be considered as an alternative to other analytical methods for the determination of carbamazepine in pharmaceutical samples.

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A potentiometric sensor for the determination of potassium in different baby follow–on milk, water, juice and pharmaceutical samples

Cited by 18 publications

References 34 publications

Editors’ Choice—Review—Advances in Electrochemical Sensors: Improving Food Safety, Quality, and Traceability

Editors’ Choice—Review—Advances in Electrochemical Sensors: Improving Food Safety, Quality, and Traceability

Selective determination of Cr(III) ions with novel potentiometric electrodes

Development of a potentiometric sensor for the determination of carbamazepine and its application in pharmaceutical formulations

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