SURFACE-ENHANCED INFRARED-ABSORPTION SPECTROSCOPY (SEIRA) USING MULTIREFLECTION ATR-ELEMENTS

Authors
WANZENBOCK HD EDLMIZAIKOFF B FRIEDBACHER G GRASSERBAUER M KELLNER R ARNTZEN M LUYVEN T THEISS W GROSSE P
Citation
Hd. Wanzenbock et al., SURFACE-ENHANCED INFRARED-ABSORPTION SPECTROSCOPY (SEIRA) USING MULTIREFLECTION ATR-ELEMENTS, Mikrochimica acta, 1997, pp. 665-667
Citations number
6
Categorie Soggetti
Chemistry Analytical
Journal title
Mikrochimica acta → ACNP
ISSN journal
00263672
Year of publication
1997
Supplement
14
Pages
665 - 667
Database
ISI
SICI code
0026-3672(1997):<665:SIS(UM>2.0.ZU;2-0
Abstract
This work shows the enhancement of spectral absorptions by noble metal s (Ag, Au) deposited in nm-thick layers on the surface of ATR-crystals . By the surface-enhanced infrared absorption (SEIRA) technique, the a bsorption bands of p-nitrobenzoic acid can be enhanced by a factor of up to 40. This enables the detection of substance concentrations in th e mM range. The structure of the metal deposit has been investigated b y atomic force microscopy and correlated with the enhancement factor.