USE OF POLY(L-LYSINE) AND ASCORBIC-ACID FOR SURFACE-ENHANCED RESONANCE RAMAN-SCATTERING ANALYSIS OF ACIDIC MONOAZO DYES

Authors
MUNRO CH SMITH WE WHITE PC
Citation
Ch. Munro et al., USE OF POLY(L-LYSINE) AND ASCORBIC-ACID FOR SURFACE-ENHANCED RESONANCE RAMAN-SCATTERING ANALYSIS OF ACIDIC MONOAZO DYES, Analyst, 118(6), 1993, pp. 731-733
Citations number
12
Categorie Soggetti
Chemistry Analytical
Journal title
Analyst → ACNP
ISSN journal
00032654
Volume
118
Issue
6
Year of publication
1993
Pages
731 - 733
Database
ISI
SICI code
0003-2654(1993)118:6<731:UOPAAF>2.0.ZU;2-Y
Abstract
A surface enhanced resonance Raman scattering (SERRS) procedure is des cribed for the analysis of acidic monoazo dyes. The SERRS spectra of t hese compounds can be obtained if a 0.01 % solution of poly(L-lysine) is added to a citrate-reduced silver sol. Further enhancement of the S ERRS intensities can be obtained by the addition of ascorbic acid. The discrimination between dyes offered by this procedure is demonstrated and a mechanism is proposed for the interaction between the poly(L-ly sine), ascorbic acid and a dye.