| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9577982 | Chemical Physics Letters | 2005 | 4 Pages |
Abstract
The surface plasmon resonance (SPR) response of Au nanoparticles to adsorption of NO2, C6H5NO2, and 2,4-dinitrotoluene (DNT) is probed using the cavity ring-down technique. A uniquely sensitive first-layer response is observed for nanoparticles having a mean diameter of 4.5Â nm, which appears characteristic of the -NO2 group. Detection limits of 1.2Â nmol/L (29Â ppb), 7.6Â nmol/L (184Â ppb), and 0.17Â nmol/L (4.1Â ppb), are estimated for NO2, C6H5NO2, and DNT, respectively.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Andrew C.R. Pipino, Vitalii Silin,