Real-time UV spectroscopy for the quantification gaseous toxins utilizing open-path or closed multipass white cells
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United States of America Patent
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Oct 30, 2007
Grant Date -
Oct 26, 2006
app pub date -
Jan 11, 2006
filing date -
Jan 12, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates, generally, to a portable system for UV spectroscopy capable of the detection and quantification of chemicals from either open air environments or by insertion of a sample using a sample chamber. The system is capable of simultaneously detecting and quantifying chemicals in either a gaseous or liquid form with both sharp and broad spectroscopic features. UV light is generated, collimated into a beam, and focused through a sample volume. The volume can be comprised of an open environment system, or a closed system with a sample cell. The sample cell may contain a number of mirrors which results in one or more 'bounces' of light through the volume prior to being focused into a UV Spectrometer. The said light source may be supplied by a variety of sources. Said light is collected and transferred to the processor by short length optical fibers thereby minimizing the light loss in the deep UV.
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