Patent ID: 6938504
Filing Date: 2005-09-06
Classification: G01N

Abstract:
1. Method of evaluating a liquid dosing process in a pipette which is filed at least partially with a gas, preferably air, in particular an aspiration and/or dispensing process in pipetting, in which method a time characteristic ( 40 ; 40 ′) of at least one state variable (p) of a medium present in the pipette is determined essentially over the entire duration of the dosing process; and in which it is determined whether the time characteristic ( 40 ; 40 ′) of the at least one state variable (p) is within a predetermined state variable setpoint range ( 42 ; 42 ′) which follows a setpoint curve, whereby an evaluation result (S 6 , S 14 , S 16 ) is output as a function of the result of the determination, characterized in that the time characteristic of the at least one state variable (p) is determined during the change in the quantity of liquid in the pipette and is compared with an associated state variable setpoint range ( 42 ; 42 ′); wherein when the time characteristic (