Cathodic Stripping Voltammetric Determination of Doxazosin in Urine and Pharmaceutical Tablets Using Carbon Paste Electrodes

The Analyst ◽  
1997 ◽  
Vol 122 (8) ◽  
pp. 849-854 ◽  
Author(s):  
Adela Arranz ◽  
Susana Fernández de Betoño ◽  
José M. Moreda ◽  
Adolfo Cid ◽  
Juan F. Arranz
Keyword(s):  
Voltammetric Determination ◽  
Carbon Paste ◽  
Pharmaceutical Tablets ◽  
Carbon Paste Electrodes ◽  
Cathodic Stripping

Utilization of Carbon Paste Electrodes for the Voltammetric Determination of Chlortoluron

2013 ◽  
Vol 25 (6) ◽  
pp. 1529-1534 ◽  
Author(s):  
Hana Dejmkova ◽  
Lucie Houskova ◽  
Jiri Barek ◽  
Jiri Zima
Keyword(s):  
Voltammetric Determination ◽  
Carbon Paste ◽  
Carbon Paste Electrodes

Voltammetric determination of piroxicam in micellar media by using conventional and surfactant chemically modified carbon paste electrodes

Talanta ◽  
1993 ◽  
Vol 40 (11) ◽  
pp. 1637-1642 ◽  
Author(s):  
J.A. Acuña ◽  
C. de la Fuente ◽  
M.D Vãzquez ◽  
M.L. Tascón ◽  
P. Sánchez-Batanero
Keyword(s):  
Voltammetric Determination ◽  
Micellar Media ◽  
Carbon Paste ◽  
Chemically Modified ◽  
Carbon Paste Electrodes ◽  
Modified Carbon Paste Electrodes

The determination of cysteine at Bi-powder carbon paste electrodes by cathodic stripping voltammetry

2008 ◽  
Vol 10 (6) ◽  
pp. 918-921 ◽  
Author(s):  
L. Baldrianova ◽  
P. Agrafiotou ◽  
I. Svancara ◽  
K. Vytras ◽  
S. Sotiropoulos
Keyword(s):  
Stripping Voltammetry ◽  
Carbon Paste ◽  
Cathodic Stripping Voltammetry ◽  
Carbon Paste Electrodes ◽  
Cathodic Stripping

Carbon paste electrodes plated with a gold film for the voltammetric determination of mercury(II)

1997 ◽  
Vol 9 (11) ◽  
pp. 827-833 ◽  
Author(s):  
Ivan Švancara ◽  
Milan Matoušek ◽  
Eugen Sikora ◽  
Klemens Schachl ◽  
Kurt Kalcher ◽  
...  
Keyword(s):  
Gold Film ◽  
Voltammetric Determination ◽  
Carbon Paste ◽  
Carbon Paste Electrodes

All-Solid-State, PVC Membrane, and Carbon Paste Ion-Selective Electrodes for Determination of Donepezil Hydrochloride in Pharmaceutical Formulation

2017 ◽  
Vol 100 (5) ◽  
pp. 1414-1419
Author(s):  
Nesreen Khamees ◽  
Tagreed Abdel-Fattah Mohamed ◽  
Abeer Rashad Derar ◽  
Azza Aziz
Keyword(s):  
Solid State ◽  
Pharmaceutical Formulation ◽  
Pvc Membrane ◽  
Ion Selective Electrodes ◽  
Carbon Paste ◽  
Pharmaceutical Tablets ◽  
Carbon Paste Electrodes ◽  
Potentiometric Response ◽  
Donepezil Hydrochloride

Abstract All-solid-state, polyvinyl chloride (PVC) membrane, and carbon paste potentiometric ion-selective electrodes (ISEs) were proposed for the determination of donepezil hydrochloride (DON) in the drug substance and a pharmaceutical formulation. The potentiometric response toward DON was based on the existence ofdonepezil-tetraphenyl borate (DON-TPB) in a PVC membrane or a carbon paste in the presence of dioctylphthalate. In contrast, the solid-state electrode was prepared by direct incorporation of DON-TPB into a commercial nail varnish without external additives. The electrodes exhibited Nernstian slopes of 55.0, 57.0, and 53.0 mV/decade over the concentration ranges of 1 × 10−5 to 1 × 10−3, 1 × 10−4 to 10−2, and 1 × 10−4 to 5 × 10−3 for the solid-state, PVC membrane, and carbon paste electrodes, respectively. The response of the electrodes is independent of pH in the range of 2–≤8. The electrodes showed good selectivity for DON with respect to a number of inorganic cations and amino acids. The electrodes were used for the determination of DON in pure solution and in pharmaceutical tablets with high accuracy (±2%) and precision (RSD ≤2%). The solid-state electrode is simple, economical, and rapid when compared to the PVC membrane and carbon paste electrodes.

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