A sensitive voltammetric detection of pramipexole based on 1,1,3,3-tetramethyldisilazanecarbon nanotube modified electrode

2017 ◽  
Vol 75 ◽  
pp. 784-790 ◽  
Author(s):  
Saeede Amirighadi ◽  
Jahan Bakhsh Raoof ◽  
Fereshteh Chekin ◽  
Reza Ojani
Keyword(s):  
Modified Electrode ◽  
Voltammetric Detection

Selective Voltammetric Detection of Dopamine in the Presence of Ascorbic Acid at Poly(p-methoxyphenol)-Modified Electrode

2020 ◽  
Vol 18 (3) ◽  
pp. 222-226
Author(s):  
Gamze Erdoğdu
Keyword(s):  
Ascorbic Acid ◽  
Detection Limit ◽  
Modified Electrode ◽  
Oxidative Polymerization ◽  
Phosphate Buffer Solution ◽  
Relative Sensitivity ◽  
High Concentration ◽  
Buffer Solution ◽  
Solution Ph ◽  
Voltammetric Detection

A gold electrode was modified with electropolymerized films of p-methoxyphenol by its oxidative polymerization from an alkaline solution by cyclic voltammetry. The modified electrode was then used to determine dopamine (DA) in the presence of a high concentration of ascorbic acid (AA) by differential pulse voltammetry. The peak positions as well as relative sensitivity DA/AA were affected by the potential window used for the polymerization. For polymerization between 0 and 1.0 V, the peak potentials recorded in a phosphate buffer solution (pH = 7.2) were 516 and 312 mV versus Ag/AgCl for DA and AA, respectively. In addition to the effects of pH and the type of electrolyte on the linearity range and detection limit are investigated. The detection limit for 3s-test is 0.1 nM. The high selectivity and sensitivity for DA was found to be due to charge discrimination/analyte accumulation.

Voltammetric Detection of Dopamine at Gold Nanotadpoles Modified Electrode

2009 ◽  
Vol 9 (2) ◽  
pp. 1619-1622 ◽  
Author(s):  
Lan Huang ◽  
Fangfang Peng ◽  
Zhirui Guo ◽  
Ning Gu
Keyword(s):  
Modified Electrode ◽  
Voltammetric Detection

A selective voltammetric detection for dopamine using poly (gallic acid) film modified electrode

2010 ◽  
Vol 21 (3) ◽  
pp. 349-352 ◽  
Author(s):  
Wei Song ◽  
Yu Chen ◽  
Juan Xu ◽  
Dan Bi Tian
Keyword(s):  
Gallic Acid ◽  
Modified Electrode ◽  
Voltammetric Detection

Voltammetric detection of nitrate in water sample based on in situ copper-modified electrode

Ionics ◽  
2013 ◽  
Vol 19 (8) ◽  
pp. 1171-1177 ◽  
Author(s):  
Xue Luo ◽  
Jian Wu ◽  
Yibin Ying
Keyword(s):  
Water Sample ◽  
Modified Electrode ◽  
Voltammetric Detection

Simultaneous voltammetric detection of anti-depressant drug, sertraline HCl and paracetamol in biological fluid at CNT-cesium modified electrode in micellar media

2020 ◽  
Vol 159 ◽  
pp. 105524
Author(s):  
Shimaa A. Atty ◽  
Asmaa H. Ibrahim ◽  
Hany Ibrahim ◽  
Ahmed M. Abdelzaher ◽  
Ahmed M. Abdel-Raoof ◽  
...  
Keyword(s):  
Modified Electrode ◽  
Biological Fluid ◽  
Micellar Media ◽  
Voltammetric Detection ◽  
Depressant Drug

scholarly journals Simultaneous voltammetric detection of dopamine, ascorbic acid and uric acid using a poly(2-(N-morpholine)ethane sulfonic acid)/RGO modified electrode

RSC Advances ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 5280-5285 ◽  
Author(s):  
Keying Zhang ◽  
Na Zhang ◽  
Li Zhang ◽  
Hongyan Wang ◽  
Hongwei Shi ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Electrochemical Sensor ◽  
Modified Electrode ◽  
Sulfonic Acid ◽  
Voltammetric Detection

A sensitive electrochemical sensor for simultaneously detecting dopamine, ascorbic acid and uric acid.

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