US 2004/0016879 A1Published application

Microfluidic system

AssigneeGyros AB

InventorsPer Andersson, Helene Derand, Magnus Gustafsson, Anders Palm, Susanne Wallenborg

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Abstract

The present invention relates to a method for presenting an analyte of a liquid sample as an MS-analyte to a mass spectrometer. More particularly, the method comprises the steps of applying a liquid sample containing the analyte to a sample inlet port of a microchannel structure of a microfluidic device, said structure also comprising an outlet port (MS-port) that is capable of being interfaced with a mass spectrometer, passing the analyte to the MS-port thereby transforming it to an MS-analyte, and presenting the MS-analyte to mass spectrometer via the MS-port.

Claims20

Dependent claims

A method for presenting an analyte of a liquid sample as an MS-analyte to a mass spectrometer, characterized

(a) in comprising the steps of:
(i) applying a liquid sample containing the analyte to a sample inlet port of a microchannel structure of a microfluidic device, said structure also comprising an outlet port (MS-port) that is capable of being interfaced with a mass spectrometer,
(ii) passing the analyte to the MS-port thereby transforming it to an MS-analyte, and
(iii) presenting the MS-analyte to mass spectrometer via the MS-port, and
(b) in inertia force being used for liquid transportation within at least a part of said microchannel structure.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/621,868Filed 17 Jul 2003
Priority: 19 Mar 2001
Published: 29 Jan 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification27 codes

B01J 19/0093
Chemical, physical or physico-chemical processes in general; Their relevant apparatus: microreactors, e.g. miniaturised or microfabricated reactors
B01L 3/5025
With fluid transport, e.g. in multi-compartment structures: for parallel transport of multiple samples
B01L 3/502715
By integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g.…
B01L 3/50273
By integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g.…

Family

Application09/811,741Continuation · filed 19 Mar 2001
Application10/621,868Continuation · filed 17 Jul 2003
US 2002/0158195 A1Published application
US 6,653,625 B2Related patent
US 6,812,457 B2Related patent
US 2004/0016879 A1This patent

From the US filing history. Foreign family members aren’t listed.

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