| 摘要 |
PROBLEM TO BE SOLVED: To provide a dispensing device equipped with a determination means for easily determining abnormality in dispensing. SOLUTION: A pressure sensor 11 is connected to a dispensing flow path system including a sample probe 1 and a dispensing syringe 3 to measure a pressure fluctuation waveform in sample dispensation. An output of the sensor 11 is sent, via an amplifier 13 and an A/D converter 14, to an integration operation circuit 15. There, with respect to data serving as references and data to be compared therewith, an integration process is executed on data obtained by performing a comparison on a given interval after the completion of a solution sucking motion for an integral interval. Output of the circuit 15 is sent to a determination circuit 16. With respect to an integration operation result, the determination circuit 16 previously stores therein a threshold range. These are compared with each other to determine whether a solution is sucked or not. COPYRIGHT: (C)2004,JPO&NCIPI |
