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    • 7. 发明申请
    • LEAKAGE DETECTION METHOD IN AUTOMATIC PIPETTING APPARATUS
    • 自动管道设备泄漏检测方法
    • WO1994006020A1
    • 1994-03-17
    • PCT/JP1993001228
    • 1993-08-31
    • ALOKA CO., LTD.ABBOTT LABORATORIESTAKEDA, MasaakiKATO, YukoKATAGI, Hitomi
    • ALOKA CO., LTD.ABBOTT LABORATORIES
    • G01N35/06
    • G01M3/26G01N35/1011G01N2035/1025
    • A leakage detection method in an automatic pipetting apparatus for objectively judging leakage by measuring an internal pressure of a pump connected to a nozzle tip. At Step 202, distilled water (90) is sucked, and when an internal pressure P1 of a pump after completion of suction is near the atmospheric pressure, leakage is identified. At Step 203, the tip (36) is kept at halt for 30 seconds, for example, without allowing it to rise after the internal pressure P1 of the pump after completion of suction is measured at Step 202. The internal pressure P2 of the pump is again measured by a pressure sensor. When this internal pressure P2 is different from the internal pressure P1 previously measured, leakage is identified. Further, at Step 204, sucked distilled water (90) is discharged into the same test tube (62), and the internal pressure of the pump is monitored by the pressure sensor. If any sharp fluctuation of the internal pressure is found, leakage is judged. When leakage is detected, leakage detection measurement is terminated.
    • 一种自动移液装置中的泄漏检测方法,用于通过测量与喷嘴头连接的泵的内部压力来客观地判断泄漏。 在步骤202中,抽吸蒸馏水(90),并且当抽吸结束后的泵的内部压力P1接近大气压力时,识别出泄漏。 在步骤203中,例如在步骤202中,在吸附完毕后测量泵的内部压力P1之后,例如,在步骤202中,将尖端(36)保持停止30秒,而不会使其升高。泵的内部压力P2 再次由压力传感器测量。 当该内部压力P2与先前测量的内部压力P1不同时,识别泄漏。 此外,在步骤204中,将吸入的蒸馏水(90)排出到同一试管(62)中,通过压力传感器监测泵的内部压力。 如果发现内部压力的急剧波动,则判断泄漏。 当检测到泄漏时,泄漏检测测量结束。