W. Ciesielski, R. Zakrzewski
1996
Citations
0
Influential Citations
3
Citations
Journal
Chemia Analityczna
Abstract
A new method for determination of 2-thiocytosine using the reaction with iodine in a neutral and an alkaline medium is presented. In the volumetric titration in phosphate buffer (pH 7) and with starch"as an indicator, the determinability range is 50-1000 IAmol (6.35-127 mg). In alkaline medium with potentiometric end-point detection the deter minability range is 10-250 IAmol (1.27-31.8 mg). In coulometric titration using the biamperometric end-point detection 0.1-10 IAmol (0.0124-1.27 mg) of 2-thiocytosine were successfully determined. The relative standard deviation for all applied techniques was below 1%.