植物灰分及土壌中に於ける二・三成分の分光分析に就て(一)(承前)

抄録

A Simple flaming device which is based on Lundegardh's principle of spectroanalysis together with a small spectro-photographic apparatus, are given as well as a simple quantitative spectroanalytical method which enables the comparison of flame spectro lines by the naked eyes. By means of the method described, potassium in ashes of rice straw and strontium and lithium content in alkali Manchurian soils were determined quantitatively. The potassium determination in the straw was controlled by the chemical method. Barium, rubisium and cesium in soils of which determination is impossible with the flame spectroanalysis, the arc-spectroanalysis was employed and compared with the results obtained by the chemical analysis.