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US 4,784,833 AGranted
Apparatus for determining chemical structure
AssigneeRuska Laboratories, Inc.
InventorsStephen J. Martin, Raymond D. Worden
Life of this patent
Estimating the term…
Abstract
A pyrolysis apparatus useful in analyzing complex chemical substances including a pyrolysis chamber formed in a tubular member of fused quartz, the apparatus having a mixing chamber formed from a fused quartz material wherein pyrolysis components from a sample to be analyzed are mixed with hydrogen prior to being subjected to detection in an analyzer such as a flame ionization detector.
Claims4
A pyrolysis apparatus comprising:
- a first, fused quartz tubular member defining a pyrolysis chamber having a gas outlet;
- means for introducing sample material into said pyrolysis chamber;
- means for effecting radiant heating of sample material in said pyrolysis chamber to effect pyrolysis thereof and produce gaseous components;
- means for passing a first gas stream through said pyrolysis chamber and out said gas outlet to produce a second gas stream containing gaseous components;
- a fused quartz nozzle member, said nozzle member defining a nozzle bore having an inlet and an outlet, the inlet of said nozzle bore being in open communication with said gas outlet of said pyrolysis chamber whereby the second gas stream passes through said nozzle bore;
- a second, fused quartz tubular member defining a mixing chamber having an outlet orifice, the outlet of said nozzle bore being in open communication with said mixing chamber whereby the second gas stream passes into said mixing chamber;
- and
- means to introduce a third gas stream into said mixing chamber;
- said outlet of said nozzle member being smaller than said outlet orifice whereby a mixture of the second gas stream and the third gas stream passes out of said mixing chamber through said outlet orifice.
6 more elements
Dependencies are inferred from the claim text.