Patent ID: 7390460

Claim:
An automatic liquid handling system comprising: a dispensing tip container having a plurality of holding portions for holding a plurality of dispensing tips; a dispensing head having attachment portions to which at least one dispensing tip selected from the plurality of dispensing tips is attached, wherein when one or more dispensing tips are attached to the attachment portions, the dispensing head is capable of performing sucking and expelling operations for sucking liquid in or expelling the liquid out from the one or more dispensing tips; moving means for moving the dispensing head; a reagent container that holds at least one reagent; a microplate formed with a plurality of wells for holding specimen; a control device that controls the sucking and expelling operations performed by the dispensing head and also controls the moving means to control movements of the dispensing head, the control device having input means for inputting one or more processes to be executed by the dispensing head; and time measuring means for measuring time starting from dripping the reagent into selected wells on the microplate by the expelling operation performed by the dispensing head and triggering dispensing a stop solution at a predetermined time based on the measuring.