| 摘要 |
PURPOSE:To prevent the soaring up of the effective component in a lower layer and to permit sampling of a pure serum by lowering a tube and a movable member while supporting afloat both members by a pneumatic supporting means. CONSTITUTION:A vertically movable base plate 13, a compressed air supplying means constituted of an air pump 24 or the like and a pneumatic supporting means 15 which is provided on the plate 13 and receives the supply of compressed air are provided. The means 15 has a movable member which holds a tube 5 and a guiding member 7 which guides vertically movably the movable member and is provided on the plate 13. The tube 5 and the movable member are supported afloat by the means 15. |
