Ionization of organic substances on conveyor means in mass spect

Details Ionization of organic substances on conveyor means in mass spect Ionization of organic substances on conveyor means in mass spect

1977-11-29

1979-12-11

Anderson, Bruce C.

Radiant energy

Ionic separation or analysis

Methods

250288, 73 611C, 250423R, B01D 5954, H01J 3934

Patent

active

041785070

ABSTRACT:
Organic samples 10 coming from a liquid chromatograph 11 are deposited on a conveyor belt 13 which transports them into a vacuum chamber at the entry end of a mass spectrometer. The samples are ionized directly on the belt by ion bombardment or using a gaseous charge carrier. Ionization is enhanced by applying an oxide layer to the belt, by neutralizing the image force, and by vaporizing alkali atoms on the belt to reduce the ionization potential.

REFERENCES:
patent: 3308292 (1967-03-01), Ardenne
patent: 4055987 (1977-11-01), McFadden
patent: 4075475 (1978-02-01), Risby et al.
Benninghoven et al. `Secondary-Ion Emission of Amino Acids`, Applied Phy., vol. 11, Sept. 26, pp. 35-39.

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