DISPENSING METHOD FOR MULTI-ITEM ANALYSIS

PURPOSE:To improve the decision accuracy remarkably, by providing plural dispensers less than the number of reaction receptacles and previously sucking the total amount of a sample to be dispensed to plural reaction receptacles into each dispenser. CONSTITUTION:As for eight reaction vesseles 25-1-1-25-1-8, for example, four sample dispensing nozzles 23-1-23-4 are provided in a sample dispensing apparetus. On this occasion, in every two units (one unit is the dispensing quantity to one a sample is sucked in to respective nozzles 23-1-23-4 reaction receptacle. First, the sample of one unit is dispensed to the reaction receptacles 25-1-1, 25-1- 3, 25-1-5 and 25-1-7 from the nozzles 23-1-23-4 in every one unit and next, the sample is dispensed to the remaining reaction receptacles in every one unit at the position of moving one pitch. Hereby, various combinations of the plural items can be selected and the decision accuracy is improved.