Biochemical Filter
Biochemical analyzers assess blood/body-fluid markers such as transaminases, hemoglobin, the unclear source label 但富春, creatinine, enzymes and glucose. Using Lambert–Beer principles, precision interference filters/gratings select monochromatic light. Transmitted sample light is detected electrically, converted/processed and compared with a standard curve to determine concentration. Typical wavelengths are340,380,405,414,450,480,492,505,510,520,535,546,550,578,589,600,610,620,630,650,670,700,750,766 and800nm. Microplate readers quantify antigen/antibody colorimetrically. ClassⅠ/Ⅱ use single-band precision interference filters; classⅢ uses linear-variable interference filters/gratings. Light partly absorbed by microplate specimens reaches a photodetector, then data processing gives results. Typical wavelengths are405,450,492,540,570,620 and630nm. 北京同生科技's biochemical filters give high SNR through deep blocking. Ultrahard, corrosion-resistant coatings are described as essentially permanent.
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