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Preparation and characterization of a codeine responsive electrode
Faculty
Not Specified
Year:
1996
Type of Publication:
Article
Pages:
1123-1130
Authors:
Amin, AS, Zareh, MM
DOI:
10.1007/BF00844686
Journal:
MONATSHEFTE FUR CHEMIE SPRINGER-VERLAG WIEN
Volume:
127
Research Area:
Chemistry
ISSN
ISI:A1996VW01200004
Keywords :
codeine electrode, codeine reineckate, plastic codeine membrane
Abstract:
The behaviour of codeine reineckate and codeine tetraphenylborate membrane electrodes has been observed with a respective Nernstian response of 58 and 56 mV/decade for 9.3 x 10(-5)-1.3 x 10(-3) M codeine sulfate solutions. The working pH 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/degrees 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 98.6 +/- 0.6\%.
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