The development of compact optical sensors for trace chemical species in the gas phase is of interest for a large number of applications. Among them, environmental monitoring of hazardous compounds is boosting the development of portable, cost-effective and robust trace-gas sensors for the prevention of damage caused by inhalation of toxic substances. Hydrogen Sulfide (H2S) is an extremely toxic and irritating gas, appearing in many context of productive and social life like petroleum refinery and geothermal activity. The concentration limits set by the U.S. Occupational Safe and Health Administration (OSHA) are 20 parts per million (ppm) for long lasting exposure, and a peak limit of 50 ppm for no more than 10 minutes. Inhalation of concentrations of 500-1000 ppm will cause rapid unconsciousness and death through respiratory paralysis and asphyxiation.
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|Titolo:||Quartz-Enhanced Photoacoustic Sensing of H2S|
|Data di pubblicazione:||2014|
|Nome del convegno:||FLAIR 2014 - Field Laser Applications in Industry and Research|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|