Flow contoured electron capture detector cell

Details Flow contoured electron capture detector cell Flow contoured electron capture detector cell

1985-05-13

1987-08-04

Turk, Arnold

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250379, 324465, 324469, 422 89, G01N 2766

Patent

active

046848070

ABSTRACT:
A small volume electron capture detector has a cylindrical cell 120 inside which there is provided a generally funnel-shaped insert structure 130 having a cup-shaped section and a cylindrical section. The rims of the cup-shaped section nearly touch the inner walls of the cell 120 so as to separate the active volume from the areas at the top corners of the cell 120 which are not actively swept by the carrier gas, thus reducing the tailing of chromatographic peaks.

REFERENCES:
patent: 3176135 (1965-03-01), Lovelock
patent: 3361907 (1968-01-01), Gregory
patent: 3372000 (1968-03-01), Gallaway et al.
patent: 4063156 (1977-12-01), Patterson
patent: 4264817 (1981-04-01), Neukermans et al.
Pulse-Modulated Electron Capture Detection with Nitrogen Carrier Gas, Patterson, J. of Chromatography, 134, 1977, pp. 25-37.
J of High Resolution Chromatography & Chromatography Comm. "A Micro-Volume Electron Capture Detector for Use in High . . . " G. Wells, pp. 651-654, 1983, vol. 6.
J of Chromatography, 235 (1982) 1-20, A. Neukermans, W. Kruger, D. McManigill "Non-Radioactive Electron-Capture Detector".
Anal. Chem 1980, 52, 473-482, "Improved Model of the Pulsed Electron Capture Detector" P. L. Gobby, E. P. Grimsrud and S. W. Warden.

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