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Square wave anodic stripping voltammetric determination of metoclopramide in tablet and urine at carbon paste electrode. 2005

O A Farghaly, and M A Taher, and A H Naggar, and A Y El-Sayed
Chemistry Department, Faculty of Science, Al-Azhar University, Assiut Branch, 71524 Assiut, Egypt. othman15@yahoo.com

A simple, reliable and selective square wave anodic stripping (SWAS) voltammetric method at carbon paste electrode (CPE) of metoclopramide hydrochloride (MCP) in pharmaceutical dosage forms (tablet) and in biological fluids (spiked and real urine samples) has been developed and evaluated. Different parameters such as medium, supporting electrolyte, pH, accumulation potential, scan rate, accumulation time and ionic strength, were tested to optimize the conditions for the determination of MCP. The adsorbed form is oxidized irreversibly under optimal conditions, viz., 0.4M HCl-sodium acetate buffer (pH approximately 6.2), 0.2M KCl, a linear concentration ranges from 0.067 to 0.336, 0.067 to 0.269 and 0.067 to 0.269 ng/mL of MCP, at accumulation times 60, 120 and 180 s, respectively, can be determined successfully. The interferences of some common excipients and some metal ions were studied. The standard addition method was used to determine the MCP in pure solutions, tablets and in biological fluids with satisfactory results. The data obtained are compared with the standard official method.

UI MeSH Term Description Entries
D008787 Metoclopramide A dopamine D2 antagonist that is used as an antiemetic. 4-Amino-5-chloro-N-(2-(diethylamino)ethyl)-2-methoxybenzamide,Cerucal,Maxolon,Metaclopramide,Metoclopramide Dihydrochloride,Metoclopramide Hydrochloride,Metoclopramide Monohydrochloride,Metoclopramide Monohydrochloride, Monohydrate,Primperan,Reglan,Rimetin,Dihydrochloride, Metoclopramide,Hydrochloride, Metoclopramide,Monohydrochloride, Metoclopramide
D012015 Reference Standards A basis of value established for the measure of quantity, weight, extent or quality, e.g. weight standards, standard solutions, methods, techniques, and procedures used in diagnosis and therapy. Standard Preparations,Standards, Reference,Preparations, Standard,Standardization,Standards,Preparation, Standard,Reference Standard,Standard Preparation,Standard, Reference
D002021 Buffers A chemical system that functions to control the levels of specific ions in solution. When the level of hydrogen ion in solution is controlled the system is called a pH buffer. Buffer
D002244 Carbon A nonmetallic element with atomic symbol C, atomic number 6, and atomic weight [12.0096; 12.0116]. It may occur as several different allotropes including DIAMOND; CHARCOAL; and GRAPHITE; and as SOOT from incompletely burned fuel. Carbon-12,Vitreous Carbon,Carbon 12,Carbon, Vitreous
D004563 Electrochemistry The study of chemical changes resulting from electrical action and electrical activity resulting from chemical changes. Electrochemistries
D004566 Electrodes Electric conductors through which electric currents enter or leave a medium, whether it be an electrolytic solution, solid, molten mass, gas, or vacuum. Anode,Anode Materials,Cathode,Cathode Materials,Anode Material,Anodes,Cathode Material,Cathodes,Electrode,Material, Anode,Material, Cathode
D004573 Electrolytes Substances that dissociate into two or more ions, to some extent, in water. Solutions of electrolytes thus conduct an electric current and can be decomposed by it (ELECTROLYSIS). (Grant & Hackh's Chemical Dictionary, 5th ed) Electrolyte
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006863 Hydrogen-Ion Concentration The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH pH,Concentration, Hydrogen-Ion,Concentrations, Hydrogen-Ion,Hydrogen Ion Concentration,Hydrogen-Ion Concentrations
D000932 Antiemetics Drugs used to prevent NAUSEA or VOMITING. Anti-emetic,Antiemetic,Antiemetic Agent,Antiemetic Drug,Anti-Emetic Effect,Anti-Emetic Effects,Anti-emetics,Antiemetic Agents,Antiemetic Drugs,Antiemetic Effect,Antiemetic Effects,Agent, Antiemetic,Agents, Antiemetic,Anti Emetic Effect,Anti Emetic Effects,Anti emetic,Anti emetics,Drug, Antiemetic,Drugs, Antiemetic,Effect, Anti-Emetic,Effect, Antiemetic,Effects, Anti-Emetic,Effects, Antiemetic

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