Detection system and method

Details Detection system and method Detection system and method

1987-02-26

1989-06-27

Marcus, Michael S.

Chemistry: analytical and immunological testing

Nitrogen containing

436116, 436161, 436172, 422 52, 422 70, 422 80, G01N 2176

Patent

active

048430161

ABSTRACT:
A detection system for detecting the presence of predetermined compounds in a sample. The system comprises a sample injection means, a chromatographic column, a conversion means and one or more specific gas detectors. The conversion means transforms the column effluent to combustion products in the gas phase, after which those combustion products are transferred to the specific gas detectors. In one embodiment for detecting nitrogen compounds, the conversion means includes an oxygen-rich flame, a means to control the flame to have a temperature in the range 600.degree.-1700.degree. C., means to inject the column effluent into the flame, and an input port for transferring the flame effluent to a specific nitrogen detector.

REFERENCES:
patent: 3207585 (1965-09-01), Glass et al.
patent: 3518059 (1970-06-01), Levy
patent: 3647387 (1972-03-01), Benson et al.
patent: 3650696 (1972-03-01), Eads
patent: 3746513 (1973-07-01), Warnick et al.
patent: 3877875 (1975-04-01), Jones
Hadden et al., Basic Liquid Chromatography.
Pankov et al., Ind. Lab., vol. 40, No. 2, pp. 194-195, Aug. 1974.
Fontijn et al., Anal Chem., vol. 42, No. 6, May 1970.
Heusden, Philips Tech. Rev. 34, 73-81, 1974, No. 2/3.

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