Belpade (Yugoslaviaj
In organic substances, sulphur is most often determined by the classical CARIUS method' which gives good results in almost all cases. This method is complicated and often connected with troubles of various kinds -the sealing up and the opening of the tube, then frequent explosions, etc. Serial determination of sulphnr by this method requires much time and a considerable amount of material. There exist other methods for the serial determination of sulphur, with various modifications, but all of them are based on the oxidation of sulphur-containing compounds by means of elementary oxygen.
For our serial investigations of the sulphur compounds which were either isolated, synthesized or investigated in plant and animal organs, WC were looking for a suitable method for as quick as possible, easy and precise a determination of sulphur. We were not able to employ the elementary oxygen method since we had to oxidize certain parts of organs of plant or animal origin.
GASPARINI~ offered in his works (rgog-xgo7) a method for the destruction of organic substances by clectro-oxidation in nitric acid. He employed this method