Method and system for internal chemical ionization with...

Details Method and system for internal chemical ionization with... Method and system for internal chemical ionization with...

2011-06-14

2011-06-14

Nguyen, Kiet T (Department: 2881)

Radiant energy

Ionic separation or analysis

C250S282000

Reexamination Certificate

active

07960689

ABSTRACT:
Method and system that allows the use of water as reactant gas for internal chemical ionization in mass spectrometry. The system provides a stable water vapor pressure in the ion trap by condensation-free water vapor flow between water reservoir and ion trap. The system can be implemented by modification of any type of ion-trap mass spectrometer designed for internal chemical ionization.

REFERENCES:
patent: 5261937 (1993-11-01), Jiang et al.
patent: 7064323 (2006-06-01), Yamakoshi et al.
A. Landrock et al., Fresenius J. Anal. Chem. 1995, vol. 351, pp. 536-543.

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