Historical organic dyes: a surface-enhanced Raman scattering (SERS) spectral database on Ag Lee-Meisel colloids aggregated by NaClO4 | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

7750346

Reference Type

Journal Article

Title

Historical organic dyes: a surface-enhanced Raman scattering (SERS) spectral database on Ag Lee-Meisel colloids aggregated by NaClO4

Author(s)

Bruni, S; Guglielmi, V; Pozzi, F

Year

2011

Is Peer Reviewed?

Yes

Journal

Journal of Raman Spectroscopy
ISSN: 0377-0486

Volume

Issue

Page Numbers

1267-1281

Language

English

DOI

10.1002/jrs.2872

Web of Science Id

WOS:000291990300010

Abstract

In the present study, several natural organic dyes used in antiquity, especially in textile dyeing, were analysed by surface-enhanced Raman scattering (SERS) spectroscopy, in order to build a wide database that could integrate the data previously published in the literature. In particular, we reported for the first time the SERS spectra of 11 dyes: dragon's blood, sandalwood, annatto, safflower yellow and red, old fustic, gamboge, catechu, kamala, aloe and sap green. Silver colloids (Ag colloids) prepared according to the Lee-Meisel procedure, i.e. by reduction of a silver nitrate (AgNO3) aqueous solution with trisodium citrate dihydrate, were used as substrate. As its efficiency had been tested in a previous work, sodium perchlorate (NaClO 4) 1.8 M was again employed as aggregating agent, giving the best results when added to the silver nanoparticles after the analyte. Copyright © 2011 John Wiley & Sons, Ltd.

Keywords

surface-enhanced Raman scattering spectroscopy; Ag colloids; sodium perchlorate; historical organic dyes