Thermal Conductivity Detector (TCD) Based Gas Chromatography (GC) Device
AssigneeABB Schweiz AG
InventorsSubhashish Dasgupta, Steve Hardy, Yannick Maret
Life of this patent
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Abstract
A Thermal Conductivity Detector (TCD) based Gas Chromatography (GC) device includes a TCD oven formed by a plurality of walls and has an inlet valve and an one outlet valve; a TCD element housed in the TCD oven; a heating source mounted on any one of the plurality of walls of the TCD oven; a Thermoelectric Generator (TEG) thermally connected to the TCD element; and a detector circuit configured to: determine thermal gradient in mixture gas, wherein the mixture gas is mixture gas of carrier gas and analyte gas fed to TCD oven; and generate electrical signal based on thermal gradient.
Claims18
A Thermal Conductivity Detector (TCD) based Gas Chromatography (GC) device (100), comprising:
- a TCD oven formed by a plurality of walls, wherein the TCD oven comprises at least one inlet valve and one outlet valve;
- a TCD element housed in the TCD oven;
- a heating source mounted on any one of the plurality of walls of the TCD oven;
- a Thermoelectric Generator (TEG) thermally connected to the TCD element;
- and
- a detector circuit connected to the TCD element.
A Thermal Conductivity Detector (TCD) based Gas Chromatography (GC) device operating under constant temperature, comprising:
- a TCD oven formed by a plurality of walls, wherein the TCD oven comprises an inlet valve and an outlet valve;
- a heating source mounted on any one of plurality of walls of the TCD oven;
- a Thermoelectric Generator (TEG) thermally connected to a TCD element, wherein the TCD element is arranged proximate to the TEG;
- at least one temperature Sensor thermally connected to TEG;
- and
- a detector circuit connected to the TCD element.
Dependencies are inferred from the claim text.