Patent ID: 7483138
Filing Date: 2009-01-27
Classification: G01N

Abstract:
1. Device ( 1 ) for the analysis or absorption measurement of a small amount of a liquid medium ( 2 ) with the help of light ( 3 ), which is guided through the medium ( 2 ) and then can be detected or analyzed with a photometer, spectrophotometer, fluorometer, or spectrofluorometer, the device ( 1 ) comprising an upper planar receiving position ( 4 ) for deposition or dropping of the medium ( 2 ) in a position of use, a light entry ( 5 ) located in the position of use underneath the receiving position ( 4 ) in a housing ( 6 ) and a first device ( 7 ) located in the beam path at the light entry ( 5 ) for deflecting the light upward toward the receiving position ( 4 ) and a reflector ( 8 ) that is mounted detachably above the receiving position ( 4 ) and that has, in a position of use, a defined spacing from the receiving position ( 4 ) that is filled or can be filled at least in a region of the light passage by the medium ( 2 ), wherein there is a second device ( 9 ) for deflecting the light coming from the reflector ( 8 ) toward a detector, the first device ( 7 ) arranged at the light entry ( 5 ) is constructed for deflecting the light beam, so that a resulting direction of an optical axis of the deflected light beam is oriented upward and at an angle to a middle (M) of the device ( 1 ) and the angled position of the optical axis is here arranged relative to the device middle (M) so that the optical axis of the light beam is directed without or with the help of at least one optical element toward a position of the reflector ( 8 ), through which the longitudinal middle (M) extends between the light entry ( 5 ) and the light exit of the device ( 1 ).