Elemental superselective gas chromatographic detection apparatus

Details Elemental superselective gas chromatographic detection apparatus Elemental superselective gas chromatographic detection apparatus

1978-12-21

1981-06-16

Marcus, Michael S.

Chemistry: physical processes

Physical processes

Crystallization

422 54, 23232C, G01N 2172, G01N 2766

Patent

active

042735599

ABSTRACT:
An alkali flame ionization detector having an independently biased activator intermediate the flame tip member and the ion collector has been found to yield ion current collector signals which will be selectively positive-going, negative-going or null in response to selected ionic species at an appropriately chosen value of bias potential. Elemental specificity has been found for those values of bias potential which produce a null signal in the presence of a sample.

REFERENCES:
patent: 3542516 (1970-11-01), Clardy
patent: 3585003 (1971-06-01), Scolnick
patent: 3925023 (1975-12-01), Kaiser

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