Device for delivery of multiple liquid sample streams to a mass spectrometer
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United States of America Patent
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N/A
Issued Date -
Apr 18, 2002
app pub date -
Dec 13, 2001
filing date -
Mar 27, 1998
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An electrospray apparatus employing multiple electrospray needles mounted in a circular arrangement sequentially delivers multiple sample streams to a mass spectrometer for analysis. One electrospray device includes an electrospray chamber, a rotatable needle supporting plate, a plurality of electrospray needles mounted on the plate, and a charger for applying a charge to droplets delivered to the electrospray chamber by the needles. Another electrospray device includes an electrospray chamber, a plurality of electrospray needles arranged in a circular arrangement, a charger, and a rotatable member for delivering gas phase ions from one needle at a time to the mass spectrometer. The rotatable electrospray apparatus provides fast repetitive analysis of simultaneously operating chromatography columns or other sample streams with a single mass spectrometer.
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