Radiant energy – Ionic separation or analysis – With sample supply means
Patent
1997-10-17
2000-03-14
Anderson, Bruce C.
Radiant energy
Ionic separation or analysis
With sample supply means
250423R, B01D 5944, H01J 4900
Patent
active
060375876
ABSTRACT:
A mass spectrometer having an ionization source containing a chemical ionization chamber, wherein the inner surfaces of the chamber are formed from molybdenum to reduce adsorption, degradation and decomposition of an analyte and to reduce adverse ion/surface reactions is disclosed. A method of reducing adsorption, degradation and decomposition of an analyte and reducing adverse ion/surface reactions in an ionization source containing a chemical ionization chamber of a mass spectrometer including the step of forming the inner surfaces of the chamber from molybdenum is also disclosed. The inner surfaces may formed from molybdenum by constructing the entire chamber or the inner surfaces of the chamber from molybdenum; by depositing, plating or coating molybdenum on the inner surfaces of the chamber; or by a combination thereof. Suitable forms of molybdenum include solid molybdenum, mixtures containing at least 10% by weight molybdenum, and reaction products containing molybdenum.
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Dowell Jerry T.
Hollis Jeffery S.
Russ, IV Charles W.
Anderson Bruce C.
Hewlett--Packard Company
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