Cathodic Voltammetric Detection of Diltiazem at a Bismuth Film Electrode: Application to Human Urine and Pharmaceuticals

Catarino, Rita I. L.; Leal, Fernanda; Pimenta, Adriana M.; Souto, M. Renata S.; Lopes, Joana R. T.

doi:10.5935/0103-5053.20140067

Cited by 3 publications

(2 citation statements)

References 1 publication

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“…Nowadays, BiFEs and other bismuth-based electrodes are used for the quantification of metals and organic compounds in a variety of matrices [3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical sensor based on bismuth-film electrode for voltammetric studies on vitamin B2 (riboflavin)

Sá

Silva

Jost

et al. 2015

Sensors and Actuators B: Chemical

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“…Nowadays, BiFEs and other bismuth-based electrodes are used for the quantification of metals and organic compounds in a variety of matrices [3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical sensor based on bismuth-film electrode for voltammetric studies on vitamin B2 (riboflavin)

Sá

Silva

Jost

et al. 2015

Sensors and Actuators B: Chemical

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“…Further, a large variety of substrates like glassy carbon, boron doped diamond, screen-printed electrodes, carbon nanotubes, and metal substrate have been used for bismuth electrodes. 15,16 Numerous studies present wide use of Bi-electrodes, for different target analytes: pharmaceuticals and drugs 17,18 ; pesticides 19,20 ; toxic organic compoundsaromatic nitro derivates 21 ; biologically significant organic compounds 14,22,23 ; food colorants 24,25 ; and most prominent for partial or simultaneous detection of toxic heavy metals. 2,3,6,12,26 Better properties of bismuth layer shall be improved further by increasing the electrochemical active surface, that can be achieved by nanostructures namely nanowires (NWs).…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Preparation of Bismuth Nanowires Using Ion-Etched Porous Polycarbonate Membrane

et al. 2018

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Bismuth as “environmentally friendly” metal represents a promising electrode material for different electrochemical techniques. In this study, we prepared bismuth nanowires by chronoamperometry using ion-etched porous polycarbonate membrane. According to SEM- EDX analysis, obtained bismuth nanowires show uniform growth with a high aspect ratio. Due to its large surface, these nanowires have the potential to greatly improve sensor properties for the detection of a variety of inorganic and organic compounds (pollutants, drugs, etc.). Key words: electrodeposition, bismuth, nanowires, SEM-EDX.

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Voltammetric Determination of Diazepam on Antimony Film Screen- Printed Electrode in Pharmaceutical Formulations

Antunović

Baošić

Lolić

2021

CPA

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Background: Diazepam belongs to the group of 1,4-benzodiapines. It is used for the treatment of anxiety, convulsions and as a muscle relaxant. The presence of 4,5-azomethine group enables its electrochemical detection Introduction: A screen-printed electrode modified with antimony film was used for the determination of diazepam in pharmaceutical preparations Methods: Electrode modification was done by ex-situ deposition of antimony on commercially available screen-printed electrode. Parameters affecting the electroanalytical response of the sensor, such as deposition potential, deposition time, and antimony concentration, were examined and optimized. The modified electrode showed enhanced electroactivity for diazepam reduction compared to unmodified electrode. Under optimal conditions, linear sweep voltammetry was used for the determination of analyte Results: The sensor showed linear dependence in the range from 0.5 to 10 μmol/L, the correlation coefficient was 0.9992. The limit of detection was 0.33 μmol/L, corresponding limit of quantification was 1.08 μmol/L. Modification enabled determination of diazepam in the presence of oxygen. Conclusion: The modified electrode was used for the determination of diazepam in tablets. Results confirmed the applicability of the electrochemical sensor

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Cathodic Voltammetric Detection of Diltiazem at a Bismuth Film Electrode: Application to Human Urine and Pharmaceuticals

Cited by 3 publications

References 1 publication

Electrochemical sensor based on bismuth-film electrode for voltammetric studies on vitamin B2 (riboflavin)

Electrochemical sensor based on bismuth-film electrode for voltammetric studies on vitamin B2 (riboflavin)

Electrochemical Preparation of Bismuth Nanowires Using Ion-Etched Porous Polycarbonate Membrane

Voltammetric Determination of Diazepam on Antimony Film Screen- Printed Electrode in Pharmaceutical Formulations

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