AUTOMATIC SOLID PHASE-EXTRACTING DEVICE

摘要

PURPOSE: To shorten the treatment time over the entire part and to enable the treatment even if the number of the treatment increases by exchangeably mounting single needle holders and multiplex needle holders for injecting solvents at a head. CONSTITUTION: The head 7 mounted with the multiplex needle holders 16 for injecting the solvents is first moved to a test tube position and the solvents are simultaneously injected into plural solid phase extracting tubes 5 by operating flow rate control pumps 28a to 28c to execute the activation treatment of the solid phase of the respective solid phase extracting tubes 5. The single needle holders 14 are then mounted at the head 7 and the test solns. in the respective test tubes 3 arranged in sample racks 2 are sucked and are successively injected into the respective solid phase extracting tubes 5. The single needle holders are again replaced with the multiplex needle holders 16 for injecting the solvents when the injection of the test solns. ends and the head 7 is moved to the test tube position where the solvents are injected into the plural solid phase extracting tubes 5 by moving the flow rate control pumps 28A to 28C.