Ultrasensitive detection of phenolic antioxidants by surface enhanced Raman spectroscopy
Journal : Proceedings of SPIE, the International Society for Optical Engineering , vol. 1045319 , 2017
Publisher : SPIE - The International Society for Optics and Photonics
International Standard Numbers
Printed : 0277-786X
Electronic : 1996-756X
Publication type : Academic article
DOI : doi.org/10.1117/12.2272054
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Surface-Enhanced Raman Spectroscopy (SERS) is a powerful surface-sensitive technique to study the vibrational properties of analytes at very low concentrations. In this study, ferulic acid, p-coumaric acid, caffeic acid and sinapic acid were analyzed by SERS using Ag colloids. Analytes were detected up to 2.5x10-9M. For caffeic acid and coumaric acid, this detection limit has been reached for the first time, as well as the SERS analysis of sinapic acid using silver colloids.