Microfluidic system (EDI)

US6812456B2 · kind B2 · utility

Assignee

• Gyros AB · SE

Inventors

• Per Andersson · Uppsala, SE
• Magnus Gustafsson · Solna, SE
• Anders Palm · Uppsala, SE
• Susanne Wallenborg · Uppsala, SE
• Cecilia Hellermark · Lidingö, SE

Key dates

• Filing date: May 24, 2002
• Grant date: Nov 2, 2004
• Expiry date: May 24, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2035/00504
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A microfluidic device in form of a disc comprising an MS-port for presentation of an MS-analyte to an EDI-MS apparatus, said MS-port is a part of a microchannel structure (I) comprising an inlet port for a sample, and comprises an EDI-area having a conductive layer (I) and an EDI-surface from which the MS-analyte is to be desorbed/ionised. The device is characterized in that layer (I) has a conductive connection and/or that there is a calibrator area in the proximity of each of said one, two or more MS-ports. In a typical variant the MS-port is in the form of a depression that is in fluid communication with upstream part of microchannel structure (I).