Chemistry: analytical and immunological testing – Measurement of electrical or magnetic property or thermal...
Patent
1994-07-27
1996-05-28
Alexander, Lyle A.
Chemistry: analytical and immunological testing
Measurement of electrical or magnetic property or thermal...
422 54, 422 70, 422 98, 436151, G01N 2700
Patent
active
055210988
ABSTRACT:
Method and apparatus for the thermionic ionization detection of one or more particular constituent components of a sample that is present in a fluid mixture. The fluid mixture flows across the interior surface of a central bore in a heated and appropriately sensitized "flow-through" thermionic source. The constituent components are ionized by an ionization process in which electrical charge is transferred from the thermionic source and converted into gas phase ion species. The current of gaseous ions is collected and measured at a collector electrode adjacent to the thermionic source.
REFERENCES:
patent: 3677709 (1972-07-01), Riedmann et al.
patent: 3959764 (1976-05-01), Allman
patent: 4203726 (1980-05-01), Patterson
patent: 4508685 (1985-04-01), Sisti et al.
patent: 4524047 (1985-06-01), Patterson
patent: 4720421 (1988-01-01), Khilnani
patent: 4839143 (1989-06-01), Vora et al.
patent: 4842825 (1989-06-01), Martin et al.
patent: 4958529 (1990-09-01), Vestal
patent: 5228514 (1993-07-01), Worden et al.
"Thermionic Nitrogen-Phosphorus Detection with an Alkali-Ceramic Bead," Paul L. Patterson and Robert L. Howe, Journal of Chromatographic Science, vol. 16, Jul. 1978, pp. 275-280.
"Preparation and Characterization of Glass Beads for Use in Thermionic Gas Chromatographic Detectors," J. A. Lubkowitz, B. P. Semonian, Javier Galobardes, and L. B. Rogers, Analytical Chemistry, vol. 50, No. 4, Apr. 1978, pp. 672-676.
"The Detection Mechanism and the Response Character of the Thermionic Detector using an Alkali Salt," J. Sevcik, Chromatographia, vol. 6, No. 3, Mar. 1973, pp. 139-148.
Hermann Bruce W.
White Richard P.
Alexander Lyle A.
Dudley Mark Z.
Hewlett--Packard Company
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