| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5266818 | Tetrahedron Letters | 2012 | 4 Pages |
Abstract
A simple and rapid colorimetric chemosensor for the detection of several nitro-explosives is presented. The method is based on the oxidation of colorless ABTS to its intense blue-green colored radical cation ABTS+ by nitrogen dioxide, which can be generated from nitro-explosives by one of the following two methods: (i) digestion of very small amounts of explosives with alkali hydroxide, yielding nitrite anions, which in acidic medium generate nitrogen dioxide, or (ii) by thermal decomposition of nitro-explosives, which generates directly nitrogen dioxide. In these processes nitrogen dioxide acts as a catalytic intermediate, thus enhancing the detection.
Related Topics
Physical Sciences and Engineering
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Authors
Petre Ionita,