Method of operating a mass spectrometer including a low level resolving DC input to improve signal to noise ratio
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 7, 1999
Grant Date -
N/A
app pub date -
Oct 31, 1997
filing date -
Oct 31, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method is provided of operating a mass spectrometer having first and second rod sets, which can be a focusing set of rods and an analysis rod set, the second rod set being downstream from the first rod set at an outlet of a spectrometer. Ions are directed into the first rod set and an RF voltage applied to the two rod sets, the RF voltage can be the same or different for the two rod sets. A low level DC voltage is applied to the first rod set sufficient to reduce a continuum background ion signal, thereby to increase the signal-to-noise ratio of the spectrometer.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully