PHOTO-IONIZATION DETECTORS AND ASSOCIATED METHODS THEREOF

A photo ionization detector (PID) is provided for selectively determining various compounds or gases present in a breath sample. The PID, comprises a substrate comprising a gas ionization chamber, at least one pair of ion sensing electrodes, and at least one amplifying circuit; and an ultraviolet (U...

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Bibliographische Detailangaben
Hauptverfasser: CHEN NANNAN, WANG XUEFENG, PIETRZYKOWSKI MATTHEW DAMIAN, CHEN RUI, CHEN CHENG-PO, LI BO
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A photo ionization detector (PID) is provided for selectively determining various compounds or gases present in a breath sample. The PID, comprises a substrate comprising a gas ionization chamber, at least one pair of ion sensing electrodes, and at least one amplifying circuit; and an ultraviolet (UV) ionization source to transmit a UV light beam into the gas ionization chamber. A system comprises the PID is also provided. A method of detecting a response pattern for various compounds or gases in breath using PID is also provided.