EP 1507592 A1 20050223 - METHOD AND DEVICE FOR DOSING SMALL VOLUMES OF LIQUID
Title (en)
METHOD AND DEVICE FOR DOSING SMALL VOLUMES OF LIQUID
Title (de)
VERFAHREN UND VORRICHTUNG ZUM DOSIEREN KLEINER FLÜSSIGKEITSVOLUMEN
Title (fr)
PROCEDE ET DISPOSITIF POUR DOSER DE PETITS VOLUMES DE LIQUIDES
Publication
Application
Priority
- CH 0300300 W 20030512
- CH 8672002 A 20020524
Abstract (en)
[origin: WO03099442A1] The invention relates to a method for dosing a volume of liquid (VF) of less than 1 ñl that is to be dispensed, by means of a dosing pump, in particular a pipette (2). According to said method, a tip (13) is completely filled with a liquid and contains the liquid (16) to be dispensed at least in the vicinity of its outlet (13a), a volume of gas (VL) is drawn into the tip (13) via the outlet (13a) and a volume corresponding to the sum of the volume of liquid (VF) to be dispensed and the volume of gas (VL) is then supplied to the tip (13) in such a way that the volume of liquid (VF) is dispensed via the outlet (13a) in a contactless manner. The device comprises a plurality of dosing pumps that can be simultaneously actuated, in particular pipettes (2), which can be actuated by an injection plunger (6), in addition to a motor (1), which drives the injection plungers (6) and also a valve (3), which is located between the dosing pump and its respective tip (13) in order to fill each system completely with liquid without any gas.
IPC 1-7
IPC 8 full level
B01L 3/02 (2006.01); G01F 11/02 (2006.01); G01N 35/10 (2006.01)
CPC (source: EP US)
B01L 3/022 (2013.01 - EP US); B01L 3/0241 (2013.01 - EP US); G01F 11/021 (2013.01 - EP US); G01F 11/029 (2013.01 - EP US); G01N 35/1016 (2013.01 - EP US); B01L 3/0234 (2013.01 - EP US); B01L 2400/02 (2013.01 - EP US); B01L 2400/0622 (2013.01 - EP US); B01L 2400/065 (2013.01 - EP US)
Citation (search report)
See references of WO 03099442A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 03099442 A1 20031204; AU 2003222704 A1 20031212; EP 1507592 A1 20050223; US 2005214172 A1 20050929
DOCDB simple family (application)
CH 0300300 W 20030512; AU 2003222704 A 20030512; EP 03718583 A 20030512; US 51593305 A 20050112