DEVICE FOR ANALYSIS OR ABSORPTION MEASUREMENT ON A SMALL AMOUNT OF LIQUID

摘要

The invention relates to a device (1) for analysis or absorption measurement on small amounts, for example on a drop or droplet of a liquid medium (2) by means of light (3) with an upper planar location spot (4) for the application or dropping of the medium (2), a light entry (5) in the housing (6) arranged beneath said location spot or location surface (4) and a first device (7) in the light beam behind said light entry (5) for deflection of the light upwards to the location spot (4) where a detachably mounted reflector (8) is also located. The device (7) for deflecting the light beam is designed such that the direction of the optical axis of the deflected light beam is oriented upwards towards the middle (M) of the device (1) and the inclined position of the optical axis of the light beam with regard to the device mid-point (M) is arranged to be directed at the position of the reflector (8) through which the longitudinal median (M) between the light entry (5) and the light exit (1) from the device runs. The height of assembly of said device (1) relative to one in which the light is first deflected about a right angle and only then after a further direction change directed at the location spot or the sample is correspondingly lower.