JP2761611B

The apparatus for the pretreatment of substances to be analyzed is capable of full-automatically conducting various kinds of operation, e.g. in particular the mounting and removal of caps (11) on and from the mouth portions of sample vials (10) the replacement of tips (19) in a tip holder (15), the divided pouring of various kinds of reagents in the sample vials (10) and the transfer of the sample vials (10) to various kinds of device. The apparatus comprises a storing portion (24) for tips (19), a storing portion (26) for reagent-containing vials (12), a storing portion (28) for sample vials (10), a chuck device (30) for said sample vials (10), a unit (14) for divided pouring a reagent into the sample vials (10), a centrifugal stirrer (31), heaters (32, 33), an evaporator (34), a three-dimensionally movable work hand (9) separately catching a tip holder (15), a vial cover (13), a screw cap (11) and the sample vial (10) from which said cap (11) has been removed, respectively, and tip-separating means (22) separating a tip (19), which has been used, are comprised. This pretreatment apparatus guarantees reproducible treatment conditions for all process steps in a preprogrammed time sequence of steps.