| 摘要 |
PURPOSE:To eliminate the influence of a co-existing material and to make analysis with high sensitivity by selecting the absorption of the transuranium element with which the wavelength of a 2nd light source of a measuring system is desired to be measured with the smaller influence of the co-existing material at a small wavelength, then subjecting the element to the colorimetric analysis. CONSTITUTION:The light of the wavelength which has a high coefft. of absorption and is less influenced by the co-existing material, among the absorption wavelengths of the transuranium element which is the material to be measured, is generated from a 1st light source 1 and is projected to a sample cell 3 made of glass. The light transmitted through the sample soln. in the sample cell 3 is converted to an electric signal by a detector 5. On the other hand, the light of the wavelength which is less influenced by the co-existing material and has the small absorption of the transuranium element desired to be measured is projected from the 2nd light source to a sample cell 4 similar to the cell 3 and is transmitted through the same sample soln. This light is detected by a detector 6. The two detected electric signals are differentially computed by an arithmetic unit and the concn. of the transuranium element is obtd. by a data processor 8. |
