Method for the detection of nitro-containing compositions using ultraviolet photolysis
- Stillwater, MN
- Idaho Falls, ID
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
Similar Records
Transmission FT-IR and Knudsen cell study of the heterogeneous reactivity of gaseous nitrogen dioxide on mineral oxide particles
Removal of aromatic nitro compounds from water by ozonation
Related Subjects
detection
nitro-containing
compositions
ultraviolet
photolysis
detecting
nitrate
nitrite
materials
water
samples
solid
substrates
sample
light
applied
dissolved
nitro
therein
photolytically
dissociate
gaseous
nitrogen
oxides
carrier
gas
introduced
generate
stream
combined
thereafter
directed
detector
detect
nitro-compositions
thereto
generated
illumination
optional
substrate
produce
supplied
nitrogen oxide
applied thereto
gaseous stream
ultraviolet light
nitrogen oxides
carrier gas
gaseous nitrogen
water sample
solid substrate
water samples
nitro-containing compositions
ultraviolet photolysis
violet light
/436/422/