| 摘要 |
<p>A fluorescence detection apparatus for immunoassay comprising an optical system (2, 3, 4) for irradiating a sample (5) containing a fluorescent substance obtained by an immunoreaction with a light emitted from a fluorescent discharge tube (2), a photosensor (8) receiving fluoresence emitted from the sample (5) for converting the received fluorescence into an electric signal, a power source (1) controlled by a clock pulse generator (1A) to intermittently perform the irradiation with a light emitted from the discharge tube (2) at a predetermined frequency, and a phase sensitive detector (10) for detecting the electric signal in synchronism with the frequency of intermittent irradiation to detect an intensity of the fluorescence by way of the electric signal.</p> |
