Patent ID: 8172455
Filing Date: 2012-05-08
Classification: B01L,G01N,Y10T

Abstract:
1. A liquid feeding method for feeding liquid in a cartridge comprising a first set of flow paths and a second set of flow paths, the first set of flow paths including at least three flow paths having respective first ends connected to each other directly or indirectly via a connection flow path, the method comprising: introducing a sample liquid in the first set of flow paths; creating a high-pressure state at a second end of a first one of said at least three flow paths of the first set for causing the sample liquid to flow into all three flow paths of the first set; forcing a portion of the sample liquid remaining in said first flow path of the first set to flow only into a second one of said at least three flow paths of the first set while retaining another portion of the sample liquid trapped in a third one of said at least three flow paths of the first set; forcing said another portion of the sample liquid in said third flow path of the first set to enter a dilution chamber; introducing a diluent liquid in the second set of flow paths; and causing a portion of the diluent liquid to enter the dilution chamber from the second set of flow paths for mixing with said another portion of the sample liquid.