Title:
MULTIPLE ION SOURCES INVOLVING ATMOSPHERIC PRESSURE PHOTOIONIZATION
Document Type and Number:
WIPO Patent Application WO2005031306
Kind Code:
A3
Abstract:
A monitor that has multiple ioniziation sources that can be switched between different modes. The monitor may have an electrostatic ionizer and a photoionizer that ionize at approximately atmospheric pressure. Activation of the ionizers is controlled by a switch. The switch can activate the ionizers in accordance with a plurality of modes. For example, the switch may create modes where the ionizers are activated sequentially or simultaneously. The monitor may further have a chemical ionizer that is controlled by the switch to activate in a plurality of modes. The modes may be switched to detect different trace molecules of a sample loaded into an ionization chamber. The ionizers are preferably located at orthogonal angles relative to each other.
Inventors:
HANOLD KARL A (US)
SYAGE JACK A (US)
SYAGE JACK A (US)
Application Number:
PCT/US2004/031334
Publication Date:
February 23, 2006
Filing Date:
September 24, 2004
Export Citation:
Assignee:
SYAGEN TECHNOLOGY (US)
HANOLD KARL A (US)
SYAGE JACK A (US)
HANOLD KARL A (US)
SYAGE JACK A (US)
International Classes:
H01J49/04; H01J49/10; H01J49/16; H01J49/40; G01N; (IPC1-7): H01J49/00; B01D59/44
Foreign References:
| US6410914B1 | 2002-06-25 |
Other References:
See also references of EP 1665327A4
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