SAMPLE ILLUMINATION CONFIGURATIONS FOR SPATIALLY-RESOLVED RAMAN-SPECTROMETRY USING A CHARGE-COUPLED-DEVICE DETECTOR

Citation
Lm. Cabalin et Jj. Laserna, SAMPLE ILLUMINATION CONFIGURATIONS FOR SPATIALLY-RESOLVED RAMAN-SPECTROMETRY USING A CHARGE-COUPLED-DEVICE DETECTOR, Talanta, 42(10), 1995, pp. 1379-1383
Citations number
27
Journal title
Talanta
ISSN journal
00399140 → ACNP
Volume
42
Issue
10
Year of publication
1995
Pages
1379 - 1383
Database
ISI
SICI code
0039-9140(1995)42:10<1379:SICFSR>2.0.ZU;2-C
Abstract
In this paper two simple configurations for sample illumination using a charge-coupled device (CCD) detector have been shown. The choice of an appropriate sample illumination can be crucial to obtain spatial an d spectral information of complex samples. It is demonstrated that sim ultaneous Raman spectra of a heterogeneous sample of three compounds c an be obtained using a vertical sample illumination. Spatially resolve d resonant Raman and surface-enhanced resonant Raman spectra of a comp lex (Ni-PAPH) have been observed with a low integration time. Dividing the CCD in two regions and with horizontal multiline sample illuminat ion (argon-ion laser at 488 nm and He-Ne laser at 632.8 nm) spatially resolved fluorescence spectra of a homogeneous mixture of dyes have be en obtained. The total image was acquired in only 1 s.