Data/hora: 01/06/2024 18:58:22

Provedor de dados: | 5
País: | France
Título: | First Steps of in Situ Surface-Enhanced Raman Scattering During Shipboard Experiments
Autores: | Peron, Olivier; Rinnert, Emmanuel; Colas, Florent; Lehaitre, Michel; Compere, Chantal.
Data: | 2010-10
Ano: | 2010
Palavras-chave: | Surface-enhanced Raman scattering; SERS; Chemosensors; Flow cells; Shipboard experiments; In situ measurements; Freundlich isotherm.
Resumo: | It is shown that the surface-enhanced Raman scattering (SERS) technique can be applied to detect organic molecules during in situ experiments. To this purpose, we used trans-1,2-bis(4-pyridyl)ethylene (BPE) as a target molecule. Adsorbed on the SERS chemosensor surface and excited under laser, the vibration modes of the molecules can be identified. SERS chemosensors are based on quartz substrates functionalized by silanization and partially coated with gold nanoparticles. SERS measurements during shipboard experiments were made with a home-made in situ Raman spectrometer connected to a marinized micro-fluidic system. The device was designed to host chemosensors in order to ensure measurements with a flow cell. A theoretical limit of detection was estimated in the range of picomolar (pM) concentrations based on Freundlich isotherm calculations.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00016/12691/9718.pdf

DOI:10.1366/000370210792973505

Editor: | Soc Applied Spectroscopy
Relação: | http://archimer.ifremer.fr/doc/00016/12691/
Formato: | application/pdf
Fonte: | Applied Spectroscopy (0003-7028) (Soc Applied Spectroscopy), 2010-10 , Vol. 64 , N. 10 , P. 1086-1093
Fonte: | 2010 Society for Applied Spectroscopy