Fluorescence detection apparatus for immunoassay

Details Fluorescence detection apparatus for immunoassay Fluorescence detection apparatus for immunoassay

G - Physics

01

N

73/51.5

G01N 21/64 (2006.01) G01N 33/53 (2006.01)

Patent

CA 1291345

ABSTRACT OF THE DISCLOSURE A fluorescence detection apparatus for immunoassay comprising an optical system for irradiating a sample containing a fluorescent substance obtained by an immunoreaction with a light emitted from a fluorescent discharge tube, a photosensor receiving fluoresence emitted from the sample for converting the received fluorescence into an electric signal, a power source controlled by a clock pulse generator to intermittently perform the irradiation with a light emitted from the discharge tube at a predetermined frequency, and a phase sensitive detector 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. - 1 -

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