Spray glow discharge ionization method and system
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United States of America Patent
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Apr 28, 2009
Grant Date -
May 31, 2007
app pub date -
Nov 21, 2003
filing date -
Oct 10, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An in-spray glow discharge ionization method and apparatus are provided The in-spray glow discharge ionization apparatus has a supply port supplying a fluid containing a compound to be measured, a gas blowing port which surrounds the supply port and which blows a gas exhibiting Penning effect to nebulize the fluid supplied from the supply port, a ground-side discharge electrode provided at a generation port at which the nebulized flow is generated, and a voltage application-side discharge electrode which is disposed in the traveling direction of the nebulized flow and opposed to the ground-side discharge electrode. In this in-spray glow discharge ionization method, while the fluid is nebulized by a spray gas (1), components of the compound to be measured which constitutes the fluid are ionized by the excited spray gas (1) exhibiting Penning effect, so that measurement is performed by a mass spectrometer.
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