Electrochemical detection of sulphide in water/seawater using nanostructured carbon–epoxy composite electrodes

2014 ◽  
Vol 6 (13) ◽  
pp. 4775-4782 ◽  
Author(s):  
M. Ardelean ◽  
F. Manea ◽  
N. Vaszilcsin ◽  
R. Pode
Keyword(s):  
Electrochemical Detection ◽  
Square Wave Voltammetry ◽  
Epoxy Composite ◽  
Composite Electrodes ◽  
Nanostructured Carbon ◽  
Square Wave ◽  
Wave Voltammetry

Detection results obtained for sulphide detection in real water using a CNF electrode by square-wave voltammetry.

Quantitation of Metal Ions in Archaeological Glass by Abrasive Stripping Square-Wave Voltammetry Using Graphite/Polyester Composite Electrodes

2003 ◽  
Vol 15 (18) ◽  
pp. 1465-1475 ◽  
Author(s):  
A. Doménech-Carbó ◽  
M. T. Doménech-Carbó ◽  
L. Osete-Cortina ◽  
J. V. Gimeno-Adelantado ◽  
S. Sánchez-Ramos ◽  
...  
Keyword(s):  
Metal Ions ◽  
Square Wave Voltammetry ◽  
Composite Electrodes ◽  
Square Wave ◽  
Wave Voltammetry ◽  
Polyester Composite

scholarly journals Electrochemical detection of exogenously administered melatonin in the brain

The Analyst ◽  
2020 ◽  
Vol 145 (7) ◽  
pp. 2612-2620 ◽  
Author(s):  
Elisa Castagnola ◽  
Kevin Woeppel ◽  
Asiyeh Golabchi ◽  
Moriah McGuier ◽  
Neharika Chodapaneedi ◽  
...  
Keyword(s):  
Electrochemical Detection ◽  
Square Wave Voltammetry ◽  
Electrochemical Measurement ◽  
Square Wave ◽  
Wave Voltammetry ◽  
The Brain

Optimized square wave voltammetry for electrochemical measurement of exogenously administered MT in vivo.

An electrochemical detection of cadmium (II) and lead (II) ions using a polymer-modified electrode with a Schiff base by square wave voltammetry

2021 ◽  
Author(s):  
Mohammed Qasim Mohammed ◽  
Hani Khalil Ismail ◽  
Hasan Fisal Alesary ◽  
Stephen Barton
Keyword(s):  
Schiff Base ◽  
Modified Electrode ◽  
Electrochemical Detection ◽  
Square Wave Voltammetry ◽  
Electrochemical Behaviour ◽  
Modified Electrodes ◽  
Polymer Coatings ◽  
Square Wave ◽  
Enhanced Sensitivity ◽  
Wave Voltammetry

Abstract The work herein concentrates on the electrochemical detection of heavy metal ions, specifically cadmium and lead ions. The introduction and modification of functional groups such as Schiff bases had led to an enhanced sensitivity of the electrode to analytes. In this study, a platinum electrode has for the first time been modified with poly(3,4- ethylenedioxythiophene) (PEDOT/Schiff base) in CH2Cl2 containing Bu4NPF6 for use to detection cadmium (II) and lead (II) ions. The structure and morphology of the polymer coatings were characterised by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM), respectively. The electrochemical synthesis and redox state response in monomer-free synthesised films have been studied by cyclic voltammetry. Moreover, the effect of scan rate on the electrochemical behaviour of the modified electrodes was also studied. The voltammetric findings have been used to calculate the surface coverage required for the polymer films and the stability of polymer electrodes in the monomer-free solutions. Square wave voltammetry (SWV) was applied for the determination of cadmium (II) and lead (II) ion concentrations and to assess the effects of pH on aqueous samples. The limits of detection for the modified electrode for cadmium (II) and lead (II) were found to be 0.95 μg L-1 and 1.84 μg L-1, respectively. These findings revealed that modified films can be considered good candidates for application in electrochemical detection devices

Electrochemical identification of anthraquinone-based dyes in solid microsamples by square wave voltammetry using graphite/polyester composite electrodes.

2003 ◽  
Vol 375 (8) ◽  
pp. 1169-1175 ◽  
Author(s):  
A. Doménech-Carbó ◽  
M. T. Doménech-Carbó ◽  
M. C. Saurí-Peris ◽  
J. V. Gimeno-Adelantado ◽  
F. Bosch-Reig
Keyword(s):  
Square Wave Voltammetry ◽  
Composite Electrodes ◽  
Square Wave ◽  
Wave Voltammetry ◽  
Polyester Composite

A competitive electrochemical aptamer-based method for aflatoxin B1 detection with signal-off response

2020 ◽  
Vol 12 (5) ◽  
pp. 646-650 ◽  
Author(s):  
Chao Wang ◽  
Yapiao Li ◽  
Qiang Zhao
Keyword(s):  
Methylene Blue ◽  
Electrochemical Detection ◽  
Aflatoxin B1 ◽  
Gold Electrode ◽  
Square Wave Voltammetry ◽  
Complementary Dna ◽  
Square Wave ◽  
Wave Voltammetry

Electrochemical detection of AFB1 with square wave voltammetry by using a complementary DNA modified gold electrode and a methylene blue labeled aptamer.

Facile and Fast Detection of Genistein in Derris scandens by Square Wave Voltammetry using a Cobalt(II) Phthalocyanine-Modified Screen-Printed Electrochemical Sensor

2020 ◽  
Vol 16 (3) ◽  
pp. 341-348
Author(s):  
Surinya Traipop ◽  
Suchada Chuanuwatanakul ◽  
Orawon Chailapakul ◽  
Eakkasit Punrat
Keyword(s):  
Electrochemical Sensor ◽  
Square Wave Voltammetry ◽  
Silver Chloride ◽  
Reference Electrode ◽  
High Sensitivity ◽  
Plastic Substrate ◽  
Fast Analysis ◽  
Square Wave ◽  
Wave Voltammetry ◽  
Screen Printed

Background: Recently, Derris scandens, a Thai herbal medicine with anti-inflammatory activity, is widely used as beverage and supplementary food. When the traditional medicine is a choice for health therapy, the simple and reliable equipment is required to control the suitable consuming amount of the active component. Objective: To develop the electrochemical sensor for genistein determination in Derris scandens with high sensitivity and rapid operation. Methods: An in-house screen-printed electrochemical sensor consisting of a three-electrode system was developed for genistein determination. A silver/silver chloride (Ag/AgCl) reference electrode, a carbon counter electrode and a carbon working electrode were prepared on a 0.3-mm-thick plastic substrate by the screen-printing technique using conductive ink. The dimensions of each sensor were 2.5×1.0 cm. Only 50 µL of sample solution was required on this device for the determination of genistein concentration by rapid response square wave voltammetry. Results: The oxidation peak of genistein appeared with good response in acidic media at a peak potential of 0.6 V. Moreover, the signal was enhanced by modifying the conductive carbon ink with cobalt( II) phthalocyanine. Under the optimized conditions, the linear range was found to be 2.5-150 µM and the detection limit was 1.5 µM. Moreover, the small volume extraction was successfully developed without any further pre-concentration. This proposed method was applied to determine genistein in Derris scandens with satisfying results. Conclusion: The proposed method is promising as an alternative method for genistein determination with facile and fast analysis.

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