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publication name Preparatioin and characterization of codaine-responsive electrode.
Authors A.S. Amin and M.M. Zareh,
year 1996
keywords
journal
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Abstract

The behaviour of codeine reineckate and codeine tetraphenylborate membrane electrodes has been observed with a respectiveNernstian response of 58 and 56 mV/decade for 9.310–5–1.310–3 M codeine sulfate solutions. The workingpH ranges were 5–8 and 4–8, respectively. The selectivity towards sugars, amines, amino acids, cations, and some pharmaceutical compounds was found to be satisfactory. The isothermal temperature coefficient was 0.0014 V/C. The electrodes were applied successfully for the determination of codeine in some pharmaceutical dosage forms with a relative standard deviation range of 0.16–0.30% and an average recovery of 98.60.6%.Das Verhalten von Codeinreineckat- und Codeintetraphenylboratmembranelektroden in 9.310–5–1.310–3 M Codeinsulfatlsungen wurde untersucht (Nernstscher Response: 58 bzw. 56 mV/Dekade). Der verwendetepH-Bereich fr die beiden Elektroden war 5–8 bzw. 4–8. Ihre Selektivitt gegenber Zuckern, Aminen, Aminosuren, Kationen und einigen pharmazeutisch aktiven Verbindungen ist zufriedenstellend. Der isotherme Temperaturkoeffizient betrgt 0.0014V/C. Die Elektroden wurden erfolgreich zur Bestimmung von Codein in einigen pharmazeutischen Prparaten eingesetzt (relative Standardabweichung: 0.16–0.30%).

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