Accession Number : ADA624494


Title :   Portable Sensor for Chemical Nerve Agents and Organophosphorus Compounds


Descriptive Note : Final rept. 1 May 2011-30 Apr 2015


Corporate Author : ALBANY STATE UNIV GA


Personal Author(s) : Seo, Seong S


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a624494.pdf


Report Date : 18 Aug 2015


Pagination or Media Count : 32


Abstract : Currently, there exists an urgent need for efficient, rapid detection of chemical nerve agents (CNA) and organophosphorus (OP) compounds and at part per trillion (PPT) level. OP compounds are prominently used by the agricultural industry in the United States and worldwide in the form of pesticides and insecticides. OP compounds also occur in the form of chemical warfare nerve agents such as sarin, cyclosarin, VX, and tabun. We propose to develop a new method for detection of OP compounds by using simple detection methodologies without using the enzyme. We will fabricate polystyrene core with ZrO2 shell nanoparticles to detect OP compounds such as demeton and malathion and CNA compounds such as paraoxon and parathion by using simple and portable reflectance method. Also, the porous thin film of Zirconium Oxide film and Zirconium Oxide sol-gel film will be developed as OP and CNA compound sensors by using simple and portable Fourier Transform Infrared Spectroscopy-Attenuated Total Reflectance (FTIR-ATR). Zirconia (ZrO2) is an inorganic oxide with thermal stability, chemical inertness, and a lack of toxicity. It has been reported that ZrO2 has a strong affinity for the phosphoric group in OP and CNA compounds by forming Zirconium- Phosphate bonding. These sensors could be used for visually monitoring OP compound levels in groundwater and air in a PPT level. We will explore the best inexpensive, simple, portable and easy method as a sensitive and reliable sensor of OP and CNA compounds.


Descriptors :   *CHEMICAL AGENTS , *INFRARED SPECTROSCOPY , *NERVE AGENTS , *ORGANIC PHOSPHORUS COMPOUNDS , *PORTABLE EQUIPMENT , DETECTION , FABRICATION , FOURIER TRANSFORMATION , INSECTICIDES , MALATHION , MULTISENSORS , NANOPARTICLES , NITROPHENOLS , OPTICAL DETECTION , PESTICIDES , PHOSPHORIC ACIDS , POLYSTYRENE , POROUS MATERIALS , REFLECTANCE , THERMAL STABILITY , THIN FILMS , ZIRCONIUM OXIDES


Subject Categories : Organic Chemistry
      Chemical, Biological and Radiological Warfare
      Atomic and Molecular Physics and Spectroscopy
      Optics
      Solid State Physics


Distribution Statement : APPROVED FOR PUBLIC RELEASE