Direct liquid injection inlet to a laser photoionization apparatus
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United States of America Patent
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Aug 22, 2006
Grant Date -
Nov 11, 2004
app pub date -
Apr 29, 2004
filing date -
Apr 29, 2003
priority date (Note) -
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Abstract
A method and apparatus are provided for analyzing an analyte at low concentration in a liquid sample by photoionization and mass spectrometry. An inlet system is provided for direct injection of the liquid sample using a capillary tube. The method and apparatus allow for 20 to 2000-fold improvement of the lower detection limit of an analyte in a liquid sample compared to a conventional liquid chromatography/mass spectrometer apparatus.
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