SPECTROSCOPIC DETECTOR AND METHOD FOR DETERMINING THE PRESENCE OF BLOOD AND BIOLOGICAL MARKER SUBSTANCES IN LIQUIDS

摘要

The invention relates to a detector for measuring scattered light in liquids, said detector comprising a housing (12), a transparent, flexible tube (18) transporting liquid (10) through the housing (12), a light emitter (24), and a light detector (28). Two plane-parallel surfaces (32, 34) are formed in the housing (12), between which the tube (10) is arranged such that two opposing tube walls (38, 40) are formed in a plane-parallel manner. The light emitter (24) is arranged in such a way that the optical axis thereof is perpendicular to the plane-parallel surfaces on the first tube wall (38), and the light detector is adjacent to the light emitter (24), the optical axes of the light emitter (24) and light detector (28) forming an angle smaller than 90°. The invention also relates to a method for detecting the presence of blood and for the quantitative determination of biological marker substances, especially bilirubin, in solution, and to a device for treating blood, said device containing the detector.