Carbon ceramic electrode incorporated with zeolite ZSM-5 for determination of Piroxicam

• Authors: Karim Asadpour-Zeynali , Mir Majidi , Mitra Zarifi
• Languages of publication: EN

Abstracts

EN

A new chemically modified electrode is constructed based on carbon ceramic electrode incorporated with zeolite ZSM-5. Voltammetric behavior of piroxicam at the carbon ceramic zeolite modified electrode (CCZME) was investigated. The modified electrode exhibited catalytic activity toward the electrooxidation of piroxicam. Experimental parameters such as solution pH, scan rate, concentration of piroxicam and zeolite amount were studied. It has been shown that using the CCZME, piroxicam can be determined by differential pulse voltammetry (DPV) and hydrodynamic amperometry (HA). Under the optimized conditions the calibration plots are linear in the concentration ranges of 0.20–25.00 and 0.20–50.10 μM with limit of detections of 0.65 and 0.29 μM for DPV and HA, respectively. The modified electrode with DPV and HA methods was successfully applied for analysis of piroxicam in pharmaceutical formulations. The results were favorably compared to those obtained by the spiked method. The results of the analysis suggest that the proposed method has promise for the routine determination of piroxicam in the products examined. [...]

Keywords

EN

Carbon Ceramic Clectrode; Modified Electrode; Piroxicam; Differential Pulse Voltammetry; Amperometry

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2010
• Volume: 8
• Issue: 1
• Pages: 155-162

Dates

published

1 - 2 - 2010

online

16 - 2 - 2010

Contributors

author

Karim Asadpour-Zeynali

• Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, 51666-16471, Iran

author

Mir Majidi

• Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, 51666-16471, Iran

author

Mitra Zarifi

• Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, 51666-16471, Iran

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Identifiers

DOI

10.2478/s11532-009-0122-z