Simultaneous Determination of Rutin and Quercetin at a Graphite Oxide and Ionic Liquid Modified Electrode by Square Wave Voltammetry

2013 ◽  
Vol 11 (3) ◽  
pp. 603-606 ◽  
Author(s):  
Jiuji Guo ◽  
Wei Kong ◽  
Le Wang ◽  
Haixia Ren ◽  
Xiaodan Sun ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Simultaneous Determination ◽  
Modified Electrode ◽  
Graphite Oxide ◽  
Square Wave Voltammetry ◽  
Square Wave ◽  
Wave Voltammetry ◽  
Rutin And Quercetin

Simultaneous determination of ascorbic and uric acids and dopamine in human serum samples using three-way calibration with data from square wave voltammetry

2016 ◽  
Vol 129 ◽  
pp. 205-212 ◽  
Author(s):  
Adrian Marcelo Granero ◽  
Gastón Darío Pierini ◽  
Sebastián Noel Robledo ◽  
María Susana Di Nezio ◽  
Héctor Fernández ◽  
...  
Keyword(s):  
Human Serum ◽  
Simultaneous Determination ◽  
Square Wave Voltammetry ◽  
Serum Samples ◽  
Square Wave ◽  
Human Serum Samples ◽  
Wave Voltammetry

Simultaneous Determination of Amlodipine and Irbesartan in Their Pharmaceutical Formulations by Square-Wave Voltammetry

2021 ◽  
Vol 24 ◽  
Author(s):  
İsmail Murat Palabıyık ◽  
Aysegul Dogan ◽  
İncilay Süslü
Keyword(s):  
Simultaneous Determination ◽  
Square Wave Voltammetry ◽  
Limit Of Detection ◽  
Pharmaceutical Formulations ◽  
Amlodipine Besylate ◽  
Square Wave ◽  
Wave Voltammetry ◽  
Limit Of Quantitation ◽  
Active Substances

Background: Hypertension is one of the most important health problems in the world and irbesartan and amlodipine are used in combination in various dosages for the treatment of high blood pressure. Objective: The aim of this study is to develop a fast, easy, sensitive, accurate, and precise square-wave voltammetry method for simultaneous determination of irbesartan and amlodipine besylate from pharmaceutical formulations at a hanging mercury drop electrode. Methods: In the applied method, since both active substances gave a peak at different potentials, no interference occurred between them. In optimization studies Britton-Robinson buffer of pH 8.0 was chosen, in which the most appropriate peak shape and maximum peak current were observed. At the same time, as a result of instrumental parameter optimization to obtain reproducible results, 6 mV for scan increment, 30 mV for pulse amplitude, and 50 Hz for frequency were found suitable. Results: As a result of the calibration studies of the optimized method, linear working ranges were determined as 1.00-13.08 µg mL-1 for irbesartan and 5.83-16.51 µg mL-1 for amlodipine besylate. Limit of detection and limit of quantitation values were respectively calculated as 0.63 and 1.00 µg mL-1 for irbesartan and 0.50 and 1.98 µg mL-1 for amlodipine besylate. The results of precision values (RSD) ranged from 0.67% to 2.31% for irbesartan and 0.65% to 1.49% for amlodipine besylate. Accuracy values were calculated as -0.15% to 1.63% for irbesartan and -0.07% to 3.78% for amlodipine besylate. The results obtained from the recovery studies ranged from 101.05% to 102.78% and from 98.88% to 102.20% for amlodipine besylate and irbesartan, respectively. Conclusion: After the validation studies of the developed method were carried out, it was successfully applied to pharmaceutical formulations containing these active substances.

Dysprosium Hydroxide Nanowires Modified Electrode for Determination of Rifampicin Drug in Human Urine and Capsules by Adsorptive Square Wave Voltammetry

2009 ◽  
Vol 5 (3) ◽  
pp. 246-255 ◽  
Author(s):  
Parandis Daneshgar ◽  
Parviz Norouzi ◽  
Faeze Dousty ◽  
Mohammad Ganjali ◽  
Ali Moosavi-Movahedi
Keyword(s):  
Modified Electrode ◽  
Human Urine ◽  
Square Wave Voltammetry ◽  
Square Wave ◽  
Wave Voltammetry
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