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    • 7. 发明授权
    • Method and apparatus for spectrometric measurement of particulate
surfaces
    • 颗粒表面光谱测量方法和装置
    • US5469255A
    • 1995-11-21
    • US186991
    • 1994-01-27
    • Kenji KamadaKeiji SasakiNoboru KitamuraHiroshi Masuhara
    • Kenji KamadaKeiji SasakiNoboru KitamuraHiroshi Masuhara
    • G01N15/00G01N21/63G01J3/42G01J3/443
    • G01N21/636G01N15/00G01N2021/637
    • A method of spectrometry is disclosed for measuring transient absorbance and transient absorption spectrum of a substance to be measured at interfaces in liquid phase of particulates containing a fluorescent pigment and the substance to be measured by the utilization of optical resonance phenomenon. An apparatus for carrying out the method is also disclosed and comprises: (a) a pulse laser oscillator for exciting the fluorescent pigment and the substance to be measured, respectively; (b) an optical delay device for causing delay of any one of pulse laser beams of two kinds of wavelengths generated by the pulse laser oscillator; (c) a microscope system for condensing laser beams generated by the pulse laser oscillator and irradiating the condensed beams to the sample; and (d) a detector for detecting light emission of the sample. According to the method of the present invention, it is possible to measure transient absorbance and transient absorption spectrum at a high sensitivity even when particulates containing the substance to be measured in liquid phase are present.
    • 公开了一种用于测量在含有荧光颜料的微粒的液相界面处的物质的瞬时吸光度和瞬时吸收光谱的方法,以及通过利用光学共振现象来测量的物质。 还公开了一种用于实施该方法的装置,包括:(a)分别激发荧光颜料和待测物质的脉冲激光振荡器; (b)用于使由脉冲激光振荡器产生的两种波长的脉冲激光束中的任一种延迟的光延迟装置; (c)用于聚集由脉冲激光振荡器产生的激光束并将聚光束照射到样品的显微镜系统; 和(d)用于检测样品的光发射的检测器。 根据本发明的方法,即使存在含有在液相中待测物质的微粒,也能以高灵敏度测定瞬时吸光度和瞬时吸收光谱。