Abstract: The organic EL device of the present invention has an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode in this order, and the hole transport layer contains an arylamine compound represented by the following general formula (1): where Ar1 to Ar4 each represent a monovalent aromatic hydrocarbon group or a monovalent aromatic heterocyclic group.

Abstract: In fitting a plurality of tips 40 in a desired arrangement onto a plurality of nozzles 21 arranged on a head 20, the operation is repeated of fitting one or a plurality of tips 40 resting upon a tip rack 60 respectively to nozzles 21 and then removing the tips from the nozzles 21 and tentatively put those on the tentative rest 27, to thereby form a tip arrangement corresponding to the desired arrangement on the tentative rest 27, followed by fitting the plurality of tips to the plurality of nozzles 21.

Abstract: The present invention is intended to provide an apparatus for screening protein crystallization conditions that can screen protein crystallization conditions efficiently by the vapor diffusion method using the sitting drop technique.

Abstract: In an automatic testing apparatus comprising, a specimen holder area adapted to hold thereon a specimen substrate for receiving therein a specimen, a reagent injector adapted to inject a reagent toward the specimen in the specimen substrate on the specimen holder area to mix the specimen with the reagent, a mixture reaction device adapted to hold thereon the specimen substrate including the mixture of the specimen and the reagent within a predetermined circumferential condition during a time period, and a transferring device for transferring the specimen substrate relative to the specimen holder area, the mixture reaction device has a take-in area to which the specimen substrate is transferred from the specimen holder area by the transferring device, and the take-in area is arranged adjacent to the specimen holder area.

Abstract: In a method for distributing liquids, in which a distribution tip attached detachably to the lower end of a distribution nozzle can be replaced at any time necessary, a tip rack having a plurality of unused distribution tips lined up thereon is placed on a fitting stage to have the distribution tips fitted with a distribution nozzles. Then, the existence, or non-existence, of a distribution tip left behind on the tip rack without being attached to a distribution nozzle after the fitting operation is finished is detected by a detection section formed of an interrupting-type light sensor, the targeted place of detection by the light sensor being the lower end of the distribution tip. Under the above-described structure, misfitting of a distribution tip can be detected with a high certainty at an early stage before an operation for sucking/discharging liquids is started.