| 摘要 |
PROBLEM TO BE SOLVED: To provide a sample dispensing apparatus capable of detecting dispensing abnormality occurring during sample dispensing operation regardless of a type and an extent of the abnormality. SOLUTION: A pressure sensor 14 is connected to a dispensing flow passage system, including a sample probe 1 and a dispensing syringe 3, and a plurality of output values of the pressure sensor during the sample dispensing operation are taken in. A multi-item analysis (based on the Mahalanobis distance) is carried out by using, as items, the plurality of taken-in output values of the pressure sensor. Whether the dispensing is normally performed or not is determined by comparing an analysis result with a threshold. A highly reliable determination result is obtained in spite of variations of sensitivity of the pressure sensor. COPYRIGHT: (C)2008,JPO&INPIT |
