K.Al_Hitti, I., K. Kareem, N. (2012). Potentiometric Determination of Ascorbic acid,Malonic acid and Resorcinol Using Sulphide and Cyanide Ion-Selective Electrodes Compared with Platinum Electrode.. Alustath, 7(2), 1-7. doi: 10.37652/juaps.2013.84987
Ismail K.Al_Hitti; Nagham K. Kareem. "Potentiometric Determination of Ascorbic acid,Malonic acid and Resorcinol Using Sulphide and Cyanide Ion-Selective Electrodes Compared with Platinum Electrode.". Alustath, 7, 2, 2012, 1-7. doi: 10.37652/juaps.2013.84987
K.Al_Hitti, I., K. Kareem, N. (2012). 'Potentiometric Determination of Ascorbic acid,Malonic acid and Resorcinol Using Sulphide and Cyanide Ion-Selective Electrodes Compared with Platinum Electrode.', Alustath, 7(2), pp. 1-7. doi: 10.37652/juaps.2013.84987
K.Al_Hitti, I., K. Kareem, N. Potentiometric Determination of Ascorbic acid,Malonic acid and Resorcinol Using Sulphide and Cyanide Ion-Selective Electrodes Compared with Platinum Electrode.. Alustath, 2012; 7(2): 1-7. doi: 10.37652/juaps.2013.84987

Potentiometric Determination of Ascorbic acid,Malonic acid and Resorcinol Using Sulphide and Cyanide Ion-Selective Electrodes Compared with Platinum Electrode.

Journal of University of Anbar for Pure Science
Article 31, Volume 7, Issue 2, August 2013, Pages 1-7    PDF (449.82 K)
Document Type: Research Paper
DOI: 10.37652/juaps.2013.84987
Authors
Ismail K.Al_Hitti* 1; Nagham K. Kareem2
1University Of Anbar - College of Science
2University of Anbar - College of Science
Abstract
A new potentiometric method was adopted for the determination of ascorbic acid , malonic acid and resorcinol using iodine (dissolved in glacial acetic acid) as oxidant . The liberated iodide was monitored using sulphide and cyanide ion-selective electrodes compared with platinum electrode . The potential changes were sufficiently sharp (in the range of 280-300mV/0.1ml) for establishing the end points over a range of 0.001-0.100M of these reductants . The method was found accurate for determination of these reductants individually and in their mixtures .
Keywords
Ion; Selective Electrodes; Ascorbic acid; oxidation; reduction potential; Iodimetric technique; Resorcinol; Malonic acid
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