What is the SPOTCHEM EZs measurement principle?
Reflectance photometry. The light emitted from an LED becomes monochromatic light of a certain wavelength after passing through an optical fiber (Five different types of optical filters are provided, and the optimum wavelength is selected for each test item). Monochromatic light is separated and transmitted to the photometry section of each channel by ten optical fibers. In each photometry section, the monochromatic light transmitted by the optical fibers is irradiated on the reagent fields, which has a color reaction after sampling. Its reflected light is read with 2 photodiodes, and the system calculates measurement results by end-point assay (EPA) or reaction-rate assay (RRA).
