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Title: Method for the detection of nitro-containing compositions using ultraviolet photolysis

Patent ·
OSTI ID:872956

A method for detecting nitro-containing compositions (e.g. nitrate/nitrite materials) in water samples and on solid substrates. In a water sample, ultraviolet light is applied to the sample so that dissolved nitro compositions therein will photolytically dissociate into gaseous nitrogen oxides (NO.sub.2(g) and/or NO.sub.(g)). A carrier gas is then introduced into the sample to generate a gaseous stream which includes the carrier gas combined with any gaseous nitrogen oxides. The carrier gas is thereafter directed into a detector. To detect nitro-compositions on solid substrates, ultraviolet light is applied thereto. A detector is then used to detect any gaseous nitrogen oxides which are photolytically generated during ultraviolet illumination. An optional carrier gas may be applied to the substrate during illumination to produce a gaseous stream which includes the carrier gas and any gaseous nitrogen oxides. The gaseous stream is then supplied to the detector.

Research Organization:
EG & G IDAHO INC
DOE Contract Number:
AC07-76ID01570
Assignee:
Lockheed Idaho Technologies Company (Idaho Falls, ID)
Patent Number(s):
US 6051436
OSTI ID:
872956
Country of Publication:
United States
Language:
English

References (15)

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