Microfluidic system
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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.
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Citations
45 Claims
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1-20. -20. (canceled)
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21. A method for presenting an analyte of a liquid sample as an MS-analyte to a mass spectrometer comprising the steps of:
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(i) applying the liquid sample containing the analyte to a sample inlet port of a microchannel structure of a microfluidic device, said microchannel structure comprises an outlet port (MS-port) that is interfaced with a mass spectrometer and inertia force is used for liquid transportation within at least a part of said microchannel structure;
(ii) passing the analyte to the MS-port thereby transforming the analyte to an MS-analyte, and (iii) presenting the MS-analyte to the mass spectrometer via the MS-port. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45)
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31-1. The method of claim 31 wherein said microfluidic device comprises a plurality of said microchannel structures.
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32-2. The method of claim 31, wherein the plurality of microchannel structures are annularly arranged around a central axis.
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40. The method of 37, wherein said separation zone separates, concentrates, or purifies the analyte, MS-analyte or derivative thereof.
Specification