公开(公告)号：US09878322B2

公开(公告)日：2018-01-30

申请号：US14047230

申请日：2013-10-07

Applicant: Roche Diagnostics Operations, Inc.

Inventor： Roland Hutter ,  Roland Stoeckli

IPC: B01L3/00 ,  B01L3/02 ,  G01N35/10

CPC classification number: B01L3/021 ,  B01L2200/0615 ,  B01L2200/0684 ,  B01L2200/141 ,  B01L2200/146 ,  B01L2400/0487 ,  G01N35/1004 ,  G01N35/1016 ,  G01N2035/1018 ,  Y10T436/2575

Abstract: A pipetting unit and a method of using the pipetting unit for pipetting a volume V1 of test liquid for carrying out an in vitro diagnostic test are presented. The method comprises dipping a nozzle of a pipetting unit into a test liquid and aspirating a volume V4 of the test liquid larger than the volume V1 required for carrying out the test. The method further comprises dipping the pipetting unit into a wash liquid and dispensing a volume V2 equal or smaller than V4 minus V1 of the test liquid into the wash liquid. The method further comprises dipping the pipetting unit into a reaction liquid and dispensing the volume V1 of test liquid required for the test.