| 摘要 |
A biochemical reaction analyzing apparatus having a reaction cup and a suction head for carrying the reaction cup, wherein the suction head can carry a reaction cup of light weight used for biochemical reaction analysis by hanging it by suction, wherein the head is provided with a cylindrical cavity as an air passage having a diameter approximately equal to that of an air suction and discharge opening formed at the lower end of the head body and extending up from the opening in the head body; further, if necessary, a plurality of circumferential grooves formed in the inner wall surrounding the cylindrical cavity or a vertically movable weight fitted in the cylindrical cavity is provided.
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