Novel all-solid contact Copper (II) - selective sensor based on Cefoperazone and poly (3,4 -ethylenedioxythiophene) (PEDOT) as conducting polymer

A potentiometric all-solid contact copper (II) selective sensor based on Cefoperazone as a neutral carrier was developed. The electrode was prepared by coating the membrane solution containing PVC, plasticizer, and carrier on the surface of gold wire electrode. The coated gold Wire electrode (CGWE) exhibited a linear response of 31.01± 0.1 mV/decade over the range of 1.0x10–8 – 1.0 x10–2 Cu (II) mol.L-1, and lower detection limit (LDL) 4.0 x 10–9 mol.L-1. The solid-contact Cu (II) solid electrode with conducting polymer poly (3,4-ethylenedioxythiophene) (PEDOT), as intermediate layer has been successfully used to detect ions at nanomolar level concentrations. The electrode has a response time between 5-10 s and was suitable for Cu (II) determination in aqueous solution over pH range (4.0–7.0). It was found to be selective towards Cu (II) ions over other common cations and the relevant potentiometric selectivity coefficients were calculated. The analytical utility of the proposed electrode was also demonstrated.

Download Full-text

Highly Selective Caffeine Coated-Wire Electrode Based on the Molecularly Imprinted Polymer

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.554-556.369 ◽

2012 ◽

Vol 554-556 ◽

pp. 369-373

Author(s):

Xiao Jun Guo ◽

Shou Lian Wei ◽

Yong Liu

Keyword(s):

Wire Electrode ◽

Imprinted Polymer ◽

Selective Electrode ◽

Molecularly Imprinted ◽

Lower Detection Limit ◽

Lower Detection ◽

Coated Wire ◽

Ph Range ◽

Coated Wire Electrode

The molecular imprinted polymer (MIP) was synthesized by precipitation polymerization with caffeine as template, methacrylic acid (MAA) as functional monomer and ethylene glycol dimethacrylate (EGDMA) as cross-linker. A selective electrode for the potentiometric determination of caffeine in the aqueous medium was developed using the MIP-modified coated-wire electrode. The electrode shows response for caffeine in a concentration range of 1.0×10-8 to 1.0×10-5 M with a lower detection limit of 5.0×10-9 M. The electrode can be used for more than 100 times. The response time is 15 s and the signal is constant in the pH range 6.4 to 9.0. The electrode can be successfully applied for the monitoring of caffeine in syrup sample.

Download Full-text

Electrocoating Polypyrrole on Gold-Wire Electrode as Potential Mediator Membrane Candidate for Anionic Surfactant Electrode Sensor

Jurnal Kimia Sains dan Aplikasi ◽

10.14710/jksa.23.5.167-176 ◽

2020 ◽

Vol 23 (5) ◽

pp. 167-176

Author(s):

Abdul Haris Watoni ◽

Indra Noviandri ◽

Muhammad Nurdin ◽

La Ode Ahmad Nur Ramadhan

Keyword(s):

Cyclic Voltammetry ◽

Conducting Polymer ◽

Limit Of Detection ◽

Supporting Electrolyte ◽

Sodium Dodecyl ◽

Gold Wire ◽

Potential Range ◽

Wire Electrode ◽

Potential Response ◽

Potential Mediator

The development of polypyrrole as a potential mediator membrane candidate for sodium dodecyl sulfate (SDS) sensor electrode has been investigated. The polypyrrole membrane was synthesized electrochemically from the pyrrole and coated at the surface of a 1.0 mm diameter of the gold-wire electrode. Electropolymerization of pyrrole and coating of the polypyrrole produced was performed by cyclic voltammetry technique in the electrochemical cell containing supporting electrolyte of 0.01 M NaClO4 with an optimum potential range of -0.9 V–1.0 V, the scanning rate of 100 mV/s, an electric current of 2 mA, and running of potential scanning of 10 cycles. By using the similar optimal parameters of cyclic voltammetry, electropolymerization of 0.01 M pyrrole solution containing 0.001 M SDS also produces a polypyrrole membrane coated at the gold-wire electrode surface. These coated electrodes have the potential response-ability toward DS- anions in the concentration range of 10-7 M–10-5 M with a limit of detection of 10-7 M and sensitivity of electrode of 9.9 mV/decade. This finding shows that the SDS solution’s role is as supporting electrolyte and also as a source of DS- dopant during the pyrrole electropolymerization processes. Dopants are trapped in the polymer membrane during the electrochemical formation of polypyrrole and role as ionophores for DS- anion in the analyte solution. A potential response to the electrode phenomena is excellent basic scientific information for further synthesis of conducting polymer and development of conducting polymer-coated wire electrode model, especially in the construction of ion-selective electrode (ISE) for the determination of anionic surfactants with those models.

Download Full-text

Solid-Contact Ion-Selective Electrodes for Histamine Determination

Sensors ◽

10.3390/s21196658 ◽

2021 ◽

Vol 21 (19) ◽

pp. 6658

Author(s):

Siyuan Ma ◽

You Wang ◽

Wei Zhang ◽

Ye Wang ◽

Guang Li

Keyword(s):

Biological Fluids ◽

Gold Wire ◽

Fast Response ◽

Ion Selective Electrodes ◽

Solid Contact ◽

Long Term Stability ◽

Artificial Cerebrospinal Fluid ◽

Selective Membrane ◽

Ph Range

Solid-contact ion-selective electrodes for histamine (HA) determination were fabricated and studied. Gold wire (0.5 mm diameter) was coated with poly(3,4-ethlenedioxythiophene) doped with poly(styrenesulfonate) (PEDOT:PSS) as a solid conductive layer. The polyvinyl chloride matrix embedded with 5,10,15,20-tetraphenyl(porphyrinato)iron(iii) chloride as an ionophore, 2-nitrophenyloctyl ether as a plasticizer and potassium tetrakis(p-chlorophenyl) borate as an ion exchanger was used to cover the PEDOT:PSS layer as a selective membrane. The characteristics of the HA electrodes were also investigated. The detection limit of 8.58 × 10−6 M, the fast response time of less than 5 s, the good reproducibility, the long-term stability and the selectivity in the presence of common interferences in biological fluids were satisfactory. The electrode also performed stably in the pH range of 7–8 and the temperature range of 35–41 °C. Additionally, the recovery rate of 99.7% in artificial cerebrospinal fluid showed the potential for the electrode to be used in biological applications.

Download Full-text

Rectifying effect for ion-selective electrodes with conducting polymer solid contact

Synthetic Metals ◽

10.1016/j.synthmet.2018.10.019 ◽

2018 ◽

Vol 246 ◽

pp. 246-253 ◽

Cited By ~ 4

Author(s):

Anna Kisiel ◽

Agata Michalska ◽

Krzysztof Maksymiuk

Keyword(s):

Conducting Polymer ◽

Ion Selective Electrodes ◽

Solid Contact

Download Full-text

An Ultrasensitive Electrochemical Sensor for the Detection of Acetaminophen via a Three-Dimensional Hierarchical Nanoporous Gold Wire Electrode

The Analyst ◽

10.1039/d1an00755f ◽

2021 ◽

Author(s):

Lanting Qian ◽

Reem Elmahdy ◽

Antony Raj Thiruppathi ◽

Aicheng Chen

Keyword(s):

Electrochemical Sensor ◽

Three Dimensional ◽

Gold Wire ◽

Nanoporous Gold ◽

Wire Electrode ◽

Inflammatory Drugs ◽

Anti Inflammatory

Acetaminophen is one of the most commonly used non-steroidal anti-inflammatory drugs worldwide. However, due to the increasing popularity of this drug, overdosing and the contamination of ambient waterways have emerged...

Download Full-text

All-solid-state carbonate-selective electrode based on a molecular tweezer-type neutral carrier with solvent-soluble conducting polymer solid contact

Talanta ◽

10.1016/s0039-9140(02)00021-8 ◽

2002 ◽

Vol 57 (2) ◽

pp. 263-270 ◽

Cited By ~ 24

Author(s):

F Song

Keyword(s):

Solid State ◽

Conducting Polymer ◽

Solid Contact ◽

Selective Electrode ◽

Neutral Carrier ◽

Molecular Tweezer

Download Full-text

Optimization of capacitance of conducting polymer solid contact in ion-selective electrodes

Electrochimica Acta ◽

10.1016/j.electacta.2015.11.050 ◽

2016 ◽

Vol 187 ◽

pp. 397-405 ◽

Cited By ~ 19

Author(s):

Żaneta Pławińska ◽

Agata Michalska ◽

Krzysztof Maksymiuk

Keyword(s):

Conducting Polymer ◽

Ion Selective Electrodes ◽

Solid Contact

Download Full-text

Beryllium-Ion-Selective PEDOT Solid Contact Electrode Based on 9,10-Dinitrobenzo-9-Crown-3-Ether

Sensors ◽

10.3390/s20216375 ◽

2020 ◽

Vol 20 (21) ◽

pp. 6375

Author(s):

Junghwan Kim ◽

Dae Hee Kim ◽

Jin Cheol Yang ◽

Jae Sang Kim ◽

Ji Ha Lee ◽

...

Keyword(s):

Electrochemical Impedance ◽

Constant Current ◽

Solid Contact ◽

Response Characteristics ◽

Best Response ◽

Wide Ph Range ◽

Selective Membrane ◽

Nernstian Slope ◽

Ph Range ◽

Contact Electrode

A beryllium(II)-ion-selective poly(ethylenedioxythiophene) (PEDOT) solid contact electrode comprising 9,10-dinitrobenzo-9-crown-3-ether was successfully developed. The all-solid-state contact electrode, with an oxygen-containing cation-sensing membrane combined with an electropolymerized PEDOT layer, exhibited the best response characteristics. The performance of the constructed electrode was evaluated and optimized using potentiometry, conductance measurements, constant-current chronopotentiometry, and electrochemical impedance spectroscopy (EIS). Under optimized conditions, which were found for an ion-selective membrane (ISM) composition of 3% ionophore, 30% polyvinylchloride (PVC), 64% o-nitro phenyl octyl ether (o-NPOE), and 3% sodium tetraphenylborate (NaTPB), the fabricated electrode exhibited a good performance over a wide concentration range (10−2.5–10−7.0 M) and a wide pH range of 2.0–9.0, with a Nernstian slope of 29.5 mV/D for the beryllium (II) ion and a detection limit as low as 10−7.0 M. The developed electrode shows good selectivity for the beryllium(II) ion over alkali, alkaline earth, transition, and heavy metal ions.

Download Full-text

Determination of Nd3+Ions in Solution Samples by a Coated Wire Ion-Selective Sensor

E-Journal of Chemistry ◽

10.1155/2012/360769 ◽

2012 ◽

Vol 9 (1) ◽

pp. 83-88 ◽

Cited By ~ 6

Author(s):

Hassan Ali Zamani

Keyword(s):

High Selectivity ◽

Water Solution ◽

Fast Response ◽

Indicator Electrode ◽

Coated Wire ◽

Nernstian Slope ◽

Ph Range ◽

Coated Wire Electrode ◽

Selective Sensor

A new coated wire electrode (CWE) using 5-(methylsulfanyl)-3-phenyl-1H-1,2,4-triazole (MPT) as an ionophore has been developed as a neodymium ion-selective sensor. The sensor exhibits Nernstian response for the Nd3+ions in the concentration range of 1.0×10−6-1.0×10−2M with detection limit of 3.7×10−7M. It displays a Nernstian slope of 20.2±0.2 mV/decade in the pH range of 2.7–8.1. The proposed sensor also exhibits a fast response time of ∼5 s. The sensor revealed high selectivity with respect to all common alkali, alkaline earth, transition and heavy metal ions, including members of the lanthanide family other than Nd3+. The electrode was used as an indicator electrode in the potentiometric titration of Nd(III) ions with EDTA. The electrode was also employed for the determination of the Nd3+ions concentration in water solution samples.

Download Full-text