Detection of polar vapors

Details Detection of polar vapors Detection of polar vapors

1979-11-15

1983-01-11

Gron, Teddy S.

Radiant energy

Ionic separation or analysis

Methods

73 19, 73 23, 250288, 250294, 250296, 250287, 422 98, H01J 4900, H01J 4922, H01J 4942

Patent

active

043683886

ABSTRACT:
The invention provides an improved apparatus for the detection of polar vapors in a gas which avoids the need for liquid reagents and requires little maintenance. In its simplest form the apparatus comprises a body member defining a passage through which a gas stream may be caused to pass; an ionizing source for ionizing the gas stream; and a collector electrode positioned in the passage downstream of the ionizing source for collecting ions carried by the gas stream. Improved performance can be obtained by the provision of means for selectively removing uncombined gas ions from the gas stream between the ionizing source and the collector electrode while permitting ion clusters formed on polar molecules to remain therein.

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patent: 4041376 (1977-08-01), Furuto et al.
patent: 4053776 (1977-10-01), Hertzberg et al.

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