Gas chromatograph detector
AssigneeThe State of Oregon acting by and through State Board of Higher Education for and on behalf of Oregon State University
InventorLarry C. Thomas
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Abstract
A gas chromatographic detector for detection of compounds which fluoresce as a photo-response to light. The detector utilizes a remotely located light source for fluorescent excitation of a compound in a gas phase, and includes apparatus for the measurement of emitted fluorescence of a gas and for the measurement of transmitted light through a gas. The detector is close-coupled to an output end of a heated chromatographic column and eliminates the requirement of heated transfer tubes between the column and the detector.
Claims5
A gas chromatographic detector for selective detection of compounds which have photo-responsive properties in a gas-phase, which comprises
- a chromatographic column with input and output ends, through which compounds travel while in a gas phase, and an oven encompassing said column useable in establishing a selected temperature above ambient temperature within said column,
- a detection block disposed directly adjacent and externally of said oven having an internal detection chamber, said block being directly connected to the output end of said column,
- a light source disposed in spaced-air-insulated relation from the oven, and
- first flexible light-transmitting conduit means connecting said light source with said detection chamber in said block.
Dependencies are inferred from the claim text.