Patent ID: 6553824
Filing Date: 2003-04-29
Classification: G01F,G01N

Abstract:
Method for determining a volume of liquid, which is drawn from a vessel by means of a pipette, wherein the method comprises the following steps:a) determining a volume of liquid contained in the vessel V1a by a detector means and storing the value in a computing unit; b) drawing a volume of liquid Vact into a pipette; c) determining the volume of liquid contained in the vessel V1e by a detector means and storing the value in a computing unit; d) calculating the volume of liquid actually drawn off V1act by means of the computing unit in accordance with the equation V1aâˆ’V1e=V1act; e) calculating the difference between the volume of liquid actually drawn off V1act and a volume of liquid predetermined to be drawn off V1targ by means of the computing unit in accordance with the equation |V1actâˆ’V1targ|=V1diff; f) comparing the difference V1diff with a predetermined volume of liquid &egr;1 by means of the computing unit and displaying an error message in case V1diff>&egr;1.