QUALITATIVE AND QUANTITATIVE ANALYZER FOR THIN LAYERED CHROMATOGRAPHY

摘要

PURPOSE:To enable direct qualitative and quantitative analysis, by incorporating a chromatographic spectrophotometer performing the quantitative analysis of each single component and a photoacoustic analysis performing the analysis of each single component by utilizing photoacoustic effect in the same apparatus. CONSTITUTION:White light is emitted to a first light path A from a white light source 4 and converted to monochromatic light by a spectroscope 5 to irradiate the thin layered chromatographic plate in a measuring cell 1. The reflected light from the thin layered chromatographic plate is guided to a detector 9 and quantified data is obtained by a specific measuring device 10. This quantified data is stored in a memory 34 through LPF32 and an A/D converter 33. A computer 31 drives a pulse motor 3 to allow a second light path B to coincide with the position corresponding to the peak value of the quantified value data. Infrared rays are emitted to the light path B from an infrared source 21 to be guided to the cell 1. The microphone 26 provided to the cell 1 detects the pressure wave generated by infrared rays as a sonic wave. This detection signal is inputted to a Fourier transformation apparatus 28 to obtain the qualitative data of each unit component.