Method for quantitative determination of potassium salt of 3-(5-methyl-1,2,4-tryazolo[4/3-a]hinolin)-propane acid

摘要

Method for quantitative determination of potassium salt of 3-(5-methyl-1,2,4-tryazolo[4/3-a]hinolin)-propane acid includes implementation of potentiometric titration of water solution of substance being investigated and use of micro-burette at titration. Titration is carried out by means of pH meter-milivoltmeter with working indicator ion-selective crystalline electrode turned with respect to ions Сu. As titrant one uses 0.02 solution of cooper (II) nitrate. Quantitative determination is carried out with use of differential dependences for determination of equivalent volume.