Ad-hoc surface-enhanced raman spectroscopy methodologies for the detection of artist dyestuffs: Thin layer chromatography-surface enhanced raman spectroscopy and in situ on the fiber analysis

Christa L. Brosseau, Alessa Gambardella, Francesca Casadio, Cecily M. Grzywacz, Jan Wouters, Richard P Van Duyne

Research output: Contribution to journalArticlepeer-review

128 Scopus citations

Abstract

Tailored ad-hoc methods must be developed for successful identification of minute amounts of natural dyes on works of art using Surface-Enhanced Raman Spectroscopy (SERS). This article details two of these successful approaches using silver film over nanosphere (AgFON) substrates and silica gel coupled with citrate-reduced Ag colloids. The latter substrate functions as the test system for the coupling of thin-layer chromatography and SERS (TLC-SERS), which has been used in the current research to separate and characterize a mixture of several artists' dyes. The poor limit of detection of TLC is overcome by coupling with SERS, and dyes which co-elute to nearly the same spot can be distinguished from each other. In addition, in situ extractionless non-hydrolysis SERS was used to analyze dyed reference fibers, as well as historical textile fibers. Colorants such as alizarin, purpurin, car-minic acid, lac dye, crocin, and Cape jasmine were thus successfully identified.

Original languageEnglish (US)
Pages (from-to)3056-3062
Number of pages7
JournalAnalytical Chemistry
Volume81
Issue number8
DOIs
StatePublished - Apr 15 2009

ASJC Scopus subject areas

  • Analytical Chemistry

Fingerprint Dive into the research topics of 'Ad-hoc surface-enhanced raman spectroscopy methodologies for the detection of artist dyestuffs: Thin layer chromatography-surface enhanced raman spectroscopy and in situ on the fiber analysis'. Together they form a unique fingerprint.

Cite this