Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Flame ionization detector
Patent
1982-05-26
1985-04-02
Marcus, Michael S.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Flame ionization detector
324470, 422 89, 436154, G01N 2172
Patent
active
045086850
ABSTRACT:
The invention relates to a modified-flame thermionic detector for gas chromatographs, of the type including a burner nozzle, an excitation electrode and a collecting electrode. The electrical connections of the nozzle and the excitation electrode can be changed at the operator's will, together with the spatial position of the excitation electrode with respect to the flame and the collector, to find out the presence of certain compounds, leaving all other conditions of analysis performance and detector supply unaltered. This allows obtaining chromatograms of unknown samples under different conditions of the detector configuration, to put into evidence the presence of certain compounds in the sample by comparing peaks of chromatograms obtained under said different operating conditions of the detector.
REFERENCES:
patent: 3661533 (1972-05-01), David et al.
patent: 3677709 (1972-07-01), Reidmann et al.
patent: 3852037 (1974-12-01), Kolb et al.
patent: 3925023 (1975-12-01), Kaiser
Sisti Giorgio
Verga Giuseppe
Carlo Erba Strumentazione S.p.A.
Marcus Michael S.
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