| 摘要 |
The present invention relates to a method for controlling pipetting operations done by a pipetting device (10), comprising: a suction and dispensing tip (12) designed to be submerged in a liquid reservoir to withdraw a certain quantity of that liquid, -an inlet (14) designed to be connected to a pressure or vacuum source (15), -a system (16) capable of measuring a value representing the flow rate of the liquid suctioned or dispensed during the pipetting operation, -an electronic circuit (18) controlling the pipetting operation and able to communicate information to a remote computer (19). The method according to the invention is based on the detection of flow rate variations and on the moment at which those variations occur, said method comprising the following steps: -obtaining a curve representing the flow rate of the liquid suctioned or dispensed by the pipette as a function of time, -computing the first deviation of said curve, -identifying and recording the maximum and minimum values of said first deviation and the moments at which the maximum and minimum values occur, -comparing the maximum and minimum values and the moments at which the maximum and minimum values occur, with predetermined references for said values and the moments at which they occur, -based on the result of the comparison, providing a validation or error message. |
