Chemistry: analytical and immunological testing – Nitrogen containing
Patent
1996-07-15
1998-06-02
Ludlow, Jan
Chemistry: analytical and immunological testing
Nitrogen containing
7315211, 7315223, 7315246, 436 28, 436118, 436149, 436172, G01N 3322
Patent
active
057598592
ABSTRACT:
A subsurface soil contaminant identification system employs a cone penetrometer unit for continuously measuring the concentration of energetic materials in potentially contaminated soils. The sensor is rugged, reliable, and has a fast response time. The invention utilizes two pulsed, time-delayed miniature lasers. An infrared laser is used for decomposing the energetic material into NO and other products, while a visible laser operating near 452 nm is used for NO detection by (2+2) resonance-enhanced multiphoton ionization (REMPI). The system employs a fiber optic to transmit the output radiation at distances of approximately 30-50 meters, a lens assembly to focus one or both laser beams, a pair of miniature electrodes to collect the ions, a penetrometer, and data acquisition/processing equipment. A REMPI spectrum of 0.1% NO at atmospheric pressure reveals that the spectral resolution is sufficient such that characteristic spectral features of NO can be identified unequivocally.
REFERENCES:
patent: 5094815 (1992-03-01), Conboy et al.
patent: 5123274 (1992-06-01), Carroll et al.
patent: 5128882 (1992-07-01), Cooper et al.
patent: 5246862 (1993-09-01), Grey et al.
patent: 5316950 (1994-05-01), Apitz et al.
patent: 5351532 (1994-10-01), Hager
patent: 5364795 (1994-11-01), Sausa et al.
Chemical Abstracts CA 124:210801, Wormhoudt et al., Mater Res. Soc. Symp. oc. (1996), 418 (Decomposition, Combustion and Detonation Chemistry of Energetic Materials), pp. 143-148, 1996.
Chemical Abstracts CA 124:163604, Theriault et al., Proc. SPIE-Int. Soc. Opt. Eng. (1995), 2504 (Environmental Monitoring and Hazardous Waste Site Remediation, 1995), pp. 75-83, 1995.
Theriault et al., Field deployment of a LIBS probe for rapid delineation of metals in soils, Proc. SPIE-Int. Soc. Opt. Eng. (1996), 2835(Advanced Technologies for Environmental Monitoring and Remediation), 83-88, Aug. 1996.
Wormhoudt et al., Tunable infrared laser detection of pyrolysis products of explosives in soils, Appl. Opt. (1996), 35(21), 3992-3997, Jul. 1996.
Bratton et al., Site characterization using optical sensors and cone penetrometers, Proc. SPIE-Int. Soc. Opt. Eng. (1996), 2883(Optical Remote Sensing for Environmental and Process Monitoring), 596-607, Sep. 1995.
Nielsen et al., A new site characterization and monitoring technology, Proc. SPIE-Int. Soc. Opt. Eng. (1995), 2504(Environmental Monitoring and Hazardous Waste Site Remediation, 1995), 278-291, Jun. 1995.
Theriault et al., Remote in-situ detection of heavy metal contamination in soils using a fiber optic laser induced breakdown spectroscopy (FOLIBS) system, Proc. SPIE-Int. Soc. Opt. Eng. (1995), 2540(Environmental Monitoring and Hazardous Waste Site Remedi, Jun. 1995.
Wormhoudt et al., Studies of pyrolysis products of explosives in soils using infrared tunable diode laser detection, Mater. Res. Soc. Symp. Proc. (1996), 418(Decomposition, Combustion, and Detonation Chemistry of Energetic Materials), 143-148, 1996.
Dimicoli et al., SPIE vol. 669 Laser Application in Chemistry (1986), pp. 40-45, 1986.
Clohan Paul S.
Ludlow Jan
Roberto Muzio B.
United States of America as represented by the Secretary of the
LandOfFree
Sensor and method for detecting trace underground energetic mate does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sensor and method for detecting trace underground energetic mate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensor and method for detecting trace underground energetic mate will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1458821