Identifying urea nitrate (UN) in post-blast debris is difficult, since it readily decomposes under high temperature. The authors developed onsite, rapid, and accurate detection of UN, using p-dimethylaminocinnamaldehyde (p-DMAC) dispersed in poly(acrylamide) hydrogels. These hydrogels change color (yellow to red) upon exposure to UN in a concentration as low as 2 ppm. The p-DMAC-hydrogel system is sensitive to both UN solid and solution. This method can be easily applied for onsite detection of UN.
|Number of pages||5|
|Journal||Sensors and Actuators, B: Chemical|
|State||Published - 1 Jan 2017|
Bibliographical noteFunding Information:
This work was supported by the Israel Police and the U.S. Department of Homeland Security Science and Technology Directorate . The Golda Meir Fellowship Fund is acknowledged for providing a post-doctoral fellowship to Konda Reddy Kunduru. Arijit Basu acknowledges the Planning and Budgetary Commission of Israel for providing a post-doctoral fellowship.
© 2016 Elsevier B.V.
- Urea nitrate
- Visual detection