Chemistry: analytical and immunological testing – Optical result – With reagent in absorbent or bibulous substrate
Patent
1988-04-15
1991-05-28
Warden, Robert J.
Chemistry: analytical and immunological testing
Optical result
With reagent in absorbent or bibulous substrate
436155, 436161, 436149, 422 78, 422 89, 422 98, 73 232, 73 2335, 324464, 324468, 324451, G01N 2171, G01N 3112, G01N 2762, G01N 2518
Patent
active
050195174
ABSTRACT:
A detector system (10) especially suited for detecting a halogen containing component in a gas stream includes a gas chromatograph (12), which is connected by gas line (13) to pyrolysis chamber (14). Sources (16) of additional gas streams are connected by a gas line (18) to the pyrolysis chamber (14). The detector electrodes in the pyrolysis chamber (14) are electrically connected to detector electronics (20) by line (22). A temperature control circuit (24) is electrically connected to heater (26) by line (28). Heater (26) is thermally coupled to the pyrolysis chamber (b 14) at (30). The pyrolysis chamber (14) is thermally coupled to thermocouple (32) at (34). The thermocouple (32) is electrically connected to the temperature control circuit (24) by line (36). The heater (26) is independent of the detector electrodes and maintains a temperature between about 700 degrees and 1000 degrees Centigrade. The detector electrodes are substantially alkali metal free.
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Trembley Theresa A.
Warden Robert J.
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