1 research outputs found
Boosting the Quantitative Inorganic Surface-Enhanced Raman Scattering Sensing to the Limit: The Case of Nitrite/Nitrate Detection
A high-performance ionic-sensing
platform has been developed by
an interdisciplinary approach, combining the classical colorimetric
Griess reaction and new concepts of nanotechnology, such as plasmonic
coupling of nanoparticles and surface-enhanced Raman scattering (SERS)
spectroscopy. This approach exploits the advantages of combined SERS/surface-enhanced
resonant Raman Scattering (SERRS) by inducing the formation of homogeneous
hot spots and a colored complex in resonance with the laser line,
to yield detection limits for nitrite down to the subpicomolar level.
The performance of this new method was compared with the classical
Griess reaction and ionic chromatography showing detection limits
about 6 and 3 orders of magnitude lower, respectively