Determination of iodinated X-ray contrast agents in pharmaceutical formulations and artificial urine samples by differential pulse voltammetry

2014 ◽  
Vol 6 (16) ◽  
pp. 6254-6264
Author(s):  
Piotr Markowski ◽  
Katarzyna Piwowar ◽  
Irena Baranowska
Keyword(s):  
Contrast Agents ◽  
Differential Pulse Voltammetry ◽  
Pharmaceutical Formulations ◽  
Differential Pulse ◽  
Urine Samples ◽  
X Ray ◽  
Artificial Urine ◽  
Pulse Voltammetry

This manuscript shows how to quickly detect the concentration of three iodinated X-ray contrast agents (iopromide, iodixanol and amidotrizoic acid) using differential pulse voltammetry.

Determination of Diclofenac in Urine Samples by Molecularly-Imprinted Solid-Phase Extraction and Adsorptive Differential Pulse Voltammetry

2007 ◽  
Vol 19 (15) ◽  
pp. 1555-1561 ◽  
Author(s):  
Laura Fernández-Llano ◽  
M. Carmen Blanco-López ◽  
M. Jesús Lobo-Castañón ◽  
Arturo J. Miranda-Ordieres ◽  
Paulino Tuñón-Blanco
Keyword(s):  
Solid Phase Extraction ◽  
Differential Pulse Voltammetry ◽  
Solid Phase ◽  
Differential Pulse ◽  
Urine Samples ◽  
Phase Extraction ◽  
Molecularly Imprinted ◽  
Pulse Voltammetry

Simultaneous Determination of Caffeine and Acetylsalicylic Acid in Pharmaceutical Formulations Using a Boron-Doped Diamond Film Electrode by Differential Pulse Voltammetry

2012 ◽  
Vol 24 (5) ◽  
pp. 1141-1146 ◽  
Author(s):  
Eric Oliveira Faria ◽  
Antônio Carlos Viera Lopes Junior ◽  
Dênio Emanuel Pires Souto ◽  
Fernando Roberto Figueiredo Leite ◽  
Flávio Santos Damos ◽  
...  
Keyword(s):  
Acetylsalicylic Acid ◽  
Differential Pulse Voltammetry ◽  
Diamond Film ◽  
Pharmaceutical Formulations ◽  
Differential Pulse ◽  
Film Electrode ◽  
Boron Doped Diamond ◽  
Boron Doped ◽  
Pulse Voltammetry

Voltammetric Determination of Guaifenesin in Pharmaceuticals and Urine Samples Based on Poly(Bromocresol Purple) Modified Glassy Carbon Electrode

2020 ◽  
Vol 16 (5) ◽  
pp. 633-639
Author(s):  
Fatma Ağın
Keyword(s):  
Differential Pulse Voltammetry ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Differential Pulse ◽  
Urine Samples ◽  
Bromocresol Purple ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Pulse Voltammetry

Introduction: The electro-oxidation behavior of expectorant drug Guaifenesin (GUF) was studied on poly(bromocresol purple) modified Glassy Carbon Electrode (GCE) by Cyclic Voltammetry (CV) and Differential Pulse Voltammetry (DPV) methods. Materials and Methods: GCE was modified with electropolymerization of Bromocresol Purple (BP) monomer for sensitive determination of GUF with voltammetric methods. The oxidation process of GUF showed irreversible and diffusion controlled behavior. The linearity has been obtained in the range from 1.00 × 10-7 to 2.00 × 10-5 M with the limit of detection 3.658 × 10-9 M for DPV in 0.1 M phosphate buffer solution (PBS) at pH 3.0. Results and Conclusion: Fully validated differential pulse voltammetry was successfully applied for the determination of GUF in pharmaceutical dosage forms and urine samples obtained satisfying results.

Polarographic and voltammetric determination of 6-mercaptopurine and 6-thioguanine

1986 ◽  
Vol 51 (11) ◽  
pp. 2466-2472 ◽  
Author(s):  
Jiří Barek ◽  
Antonín Berka ◽  
Ludmila Dempírová ◽  
Jiří Zima
Keyword(s):  
Detection Limit ◽  
Differential Pulse Voltammetry ◽  
Detection Limits ◽  
Differential Pulse ◽  
Voltammetric Determination ◽  
Differential Pulse Polarography ◽  
Hanging Mercury Drop Electrode ◽  
Pulse Polarography ◽  
Pulse Voltammetry

Conditions were found for the determination of 6-mercaptopurine (I) and 6-thioguanine (II) by TAST polarography, differential pulse polarography and fast-scan differential pulse voltammetry at a hanging mercury drop electrode. The detection limits were 10-6, 8 . 10-8, and 6 . 10-8 mol l-1, respectively. A further lowering of the detection limit to 2 . 10-8 mol l-1 was attained by preliminary accumulation of the determined substances at the surface of a hanging mercury drop.

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