| 摘要 |
PURPOSE:To correct the wavelength characteristic of a photometer with good accuracy and to measure the spectra intrinsic to a sample with good accuracy by correcting the zero point of a fluorescent detecting system and a monitor detecting system. CONSTITUTION:A luminous flux passes a lens 12 and an incident slit 14A and is divided by an excitation side spectroscope 16. The excited light is irradiated through an exit slit 14B of an excitation side slit plate 14, a mirror 20 and a lens 22 to a sample cell 24. On the other hand part of the excited light is split by a beam splitter 18 and the quantity of the light is measured by a detector 30. The fluorescence generated in the cell 24 is condensed by a lens 32, is dived by a fluorescence side spectroscope 36 and is measured in the intensity by a fluorescent detector 40. The slit plates 14, 34 and a shutter 48 are controlled by a control system 42. A monitor signal IM for the excitation light and fluorescent signal IS are respectively fed via a amplifiers 44A, 44B to a calculator 46, by which the photometric value is calculated. |
