Sample purification on a microfluidic device
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United States of America Patent
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Issued Date -
Jun 13, 2002
app pub date -
Dec 7, 2001
filing date -
Dec 7, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of sample separation begins with the step of moving product and contaminant along a first channel in a first direction at different speeds for the product and contaminant until contaminant separates from the product and is lost by dilution in a waste well. Then the direction of movement of the product and contaminant is reversed to separate product from the contaminant. After product is separated from contaminant it may be detected using conventional detectors. To ensure effective dilution of contaminant, it is preferred that there be a delay or pause between forward movement of the sample and reverse movement.
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