抄録
Complete automatization of micro-Dumas method for nitrogen analysis was concluded by the automatic combustion apparatus devised by the authors. Desirable motion of the movable furnace was effected by the use of a cam of special design. By the use of this mechanism, the total analytical time has been shortened compared to the existing Pregl method, the procedure has been much simplified, and individual difference in analytical values has been eliminated. Samples that decompose at thigh temperatures, which were apt to be incompletely decomposed by the Pregl method and were the cause of error, could be analyzed easily and with good results.
