| 摘要 |
PURPOSE:To improve the accuracy in analysis of a sample in the process of frequently lighting light sources for the high speed analysis of the sample, by projecting the light emitted from light emitting diodes to the sample through optical fibers. CONSTITUTION:Light emitting diodes (LED) 1a-1d, whose number is the same as that of specified wavelength regions, are provided at the light input side of a sample light path S. Optical transmission cables 6a-6d, which form the sample light path S to a sample cell in correspondence with the LEDs 1a-1d, are provided. The light emitting diodes 1a-1d are made to emit light, e.g., in the sequence of 1a-1b-1c-1d-1a..., repeatedly. Then, the electric signal for the amount of light, which is transmitted through the sample cell 7, is sequentially obtained for every specified wavelength region. |
