Gas Sensing

Any method used to measure the amount of a specific gas or gases in a given environment including both sensors and instruments.

Combustion analyzers and flue gas analyzers measure the gas content of emissions in order to monitor the combustion efficiency of fuel-burning equipment.
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Gas chromatographs separate organic chemical mixtures according to physical properties.
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Gas instruments detect, monitor or analyze gases present in an environment.
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Gas sensors interact with a gas to initiate the measurement of its concentration. The sensor then provides output to an instrument to display the measurements.
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Gas transmitters consist of an enclosure, sensor, and electronics that convert a signal from a gas sensor into an analog output signal (typically 4-20 mA).
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Gas chromatography columns (GC columns) are of two types: packed and capillary. Solutes to be measured travel through the column at a rate primarily determined by their physical properties, and the temperature and composition of the column.
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Gas chromatography detectors (GC detectors) identify solutes as they exit the chromatographic column. A chromatogram is generated plotting the signal versus time.
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Total organic carbon (TOC) analyzers measure the amount of total organic carbon present in a liquid sample.
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