Detection system and method

Details Detection system and method Detection system and method

1974-10-07

1988-10-18

Marcus, Michael S.

Chemistry: analytical and immunological testing

Nitrogen containing

Oxides of nitrogen

422 52, 422 78, 422 89, 436114, 436122, 436124, 436172, 436161, G01N 2176

Patent

active

047787643

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 output port for transferring the flame effluent to a specific nitrogen detector.

REFERENCES:
patent: 3006836 (1961-10-01), Cole
patent: 3528779 (1970-09-01), Fontijn
patent: 3578785 (1971-05-01), Patterson
patent: 3622276 (1971-11-01), Haahtl et al.
patent: 3710107 (1973-01-01), Warren et al.
Clough et al, Trans. Par. Soc., 63,915 (1967).

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