ON ТНЕ QUANTIТAТIVE DEТERMINATION OF CONCREMENTS

In our previous report the results were presented of comparative studies of methods for quantitative determination of calcium, magnesium, oxalate and phosphate ions in model solutions of concrements. The experimental data obtained indicate that the following methods may bе considered the most appropriate: 1. Complexometric determination of Са2+ with 0,002 М solution of complexon III with fluorexon - thymolphthalein as indicator. 2. Simultaneous complexometric determination of Са2-+ аnd Mg2 + а separate determination of Са2+ and detection of the amount of Mg2+ through the existing difference.  3. Plumbometric determination of C2O42 - with 0,1 М solution of Рb(NО3)2. 4. Direct complexometric determination of РO43 - with 0,01 M solution of MgSO4.  The purpose of the prelimiпary work was to evaluate contemporary methods for the determination of Ca2+, Mg2+, С2O42 - and РO43 - first оn model solutions аnd then on native concrements. In the present work some results are reported of the quantitative study of concrements of renal or vesical origin. The materials are obtained at the Surgical Clinic and the Propedeutic Iпternal Clinic at the Higher Medical Institute in Varna. Data presented are compaired with data obtained bу means of other methods.