| 摘要 |
PURPOSE:To shorten time for reaction of a reagent by heating a distributing nozzle including the vicinity of a discharge port thereof by providing an ultrasonic vibrator which causes a heat by friction in resonators amplifying ultrasonic vibration, a flow passage and the nozzle for sucking and discharging a reagent and a specimen. CONSTITUTION:Ultrasonic vibration generated from a laminate-type piezoelectric element is enlarged by resonators 4 and 40 and transmitted to a flow passage pipe 10 and a distributing nozzle 11. An internal friction occurs in a small- diameter part 9 of the resonator and in the flow passage pipe 10 and the distributing nozzle 11 and a temperature rises instantaneously. Accordingly, a part whereon the flow passage pipe 10 is wound round and a liquid, such as a specimen or a reagent, which is sucked up by the distributing nozzle 11 can be heated to a set temperature in a short time. In this case, adjustment of the temperature of the liquid in a large quantity is also enabled by increasing the number of winding of this flow passage pipe 11 or by winding it in a number of stages. |
