Method and system for introducing make-up flow in an electrospray ion source system
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United States of America Patent
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Nov 24, 2015
Grant Date -
Mar 19, 2015
app pub date -
May 17, 2013
filing date -
May 18, 2012
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Abstract
An electrospray ion source method and system is provided for detecting emitter failure comprising a liquid chromatography column suitable for chromatographic separation of a sample. The column can have an inlet for receiving the sample; and an outlet for ejecting the sample. A make-up flow channel is provided for introducing make-up flow of liquid to the sample post-column, wherein the make-up flow normalizes the spray current. An electrospray ionization source is provided having one or more electrospray ionization emitter nozzles for receiving the make-up flow containing sample. A power supply can provide a voltage to the one or more emitter nozzles, and a measurement device can measure and monitor the spray current.
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