Patent ID: 8765475
Filing Date: 2014-07-01
Classification: G01N,Y10T

Abstract:
1. A colorimetric absorbance measurement method, comprising: emitting a light beam via a light source; driving a reaction tray carrying a plurality of reaction cuvettes to rotate at a substantially uniform speed through the light beam; transferring one or more filters which are arranged as or on a filter wheel sequentially to or in a light path of the light beam, starting from a filter of a first wavelength; halting the filter wheel at one or more time intervals; sampling, via a photoelectric detection unit, photoelectric data at the one or more time intervals when the filter wheel is halted and the light beam has passed through at least one of the plurality of reaction cuvettes; and controlling, via a controller, the timing of halting the filter wheel and the timing of sampling photoelectric data; calculating, via a processor, a colorimetric absorbance using the sampled photoelectric data.