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Sensors for carbon dioxide are an example of this approach and they have been commercially available for several years. Cross-sensitivity of electronic chemical sensors may also be utilized to design chemical sensor arrays , which utilize a variety of specific sensors that are cross-reactive for fingerprint detection of target gases in complex ...
The charged aerosol detector (CAD) is a detector used in conjunction with high-performance liquid chromatography (HPLC) and ultra high-performance liquid chromatography (UHPLC) to measure the amount of chemicals in a sample by creating charged aerosol particles which are detected using an electrometer.
A Kidde plug-in carbon monoxide detector. A carbon monoxide detector or CO detector is a device that detects the presence of the carbon monoxide (CO) gas to prevent carbon monoxide poisoning. In the late 1990s, Underwriters Laboratories changed the definition of a single station CO detector with a sound device to carbon monoxide (CO) alarm.
In waste water treatment, the most commonly used adsorbent is granular activated carbon (GAC), often used as to treat both liquid and gas phase volatile organic compounds and organic pollutants. [ 1 ] [ 2 ] Activated carbon beds vary in lifetime depending on the concentration of the pollutant(s) being removed, their associated adsorption ...
Carbon monoxide (CO) and carbon dioxide (CO 2) are measured by non-dispersive infrared (NDIR) light absorption based on the Beer-Lambert law. [49] CO can also be measured using electrochemical gel sensors and metal-oxide semiconductor (MOS) detectors, which are used in household carbon monoxide detectors. [50]
The key components are an infrared source, a light tube, an interference (wavelength) filter, and an infrared detector. The gas is pumped or diffuses into the light tube, and the electronics measure the absorption of the characteristic wavelength of light. NDIR sensors are most often used for measuring carbon dioxide. [2]
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