摘要
测试分析了白术煎剂及其在银胶中的拉曼光谱,并对其进行初步谱峰归属。白术煎剂表面增强拉曼光谱在396,548,617,730,955和1 327 cm-1处,出现6个明显的拉曼信号。测试了白术煎剂和白术煎剂-银胶混合体系的紫外-可见吸收光谱,该吸收光谱在长波区出现新共振吸收峰(999 nm处),进而研究了白术煎剂在银溶胶上的吸附特性及其表面增强机理。结果表明,表面增强拉曼光谱可能为白术煎剂或其他中药煎剂提供一种准确、直接、快速的检测方法。
The normal Raman spectra and surface-enhanced Raman spectra （SERS） of largehead atractylodes rhizome decoction were tested and analyzed. The characteristic Raman bands of largehead atractylodes rhizome decoction were tentatively assigned. Six obvious Raman bands （396, 548, 617, 730, 955 and 1 327 cm^- 1 ） were observed in the SERS of largehead atractylodes rhizo- me decoction. The absorption spectra of largehead atractylodes rhizome decoction and the mixture of silver colloids and largehead atractylodes rhizome decoction were tested. A new resonance absorption peak （999 nm） appeared in the long-wavelength region in LIV-Vis absorption spectra of the mixture. The adsorption characteristics and possible enhancing mechanism of the largehead atractylodes rhizome decoction on silver colloid were speculated. The results showed that the surface-enhanced Raman spectroscopy might provide a new kind of precise, direct and fast detecting method for the largehead atractylodes rhizome decoction or other traditional Chinese medicine.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2009年第9期2450-2452,共3页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金项目(60778046)
福建省科技项目(2008100115,2008J0016)
福建省半导体材料及应用重点实验室(厦门大学)项目资助
关键词
表面增强拉曼光谱(SERS)
紫外-可见光吸收谱
银胶
白术煎剂
Surface-enhanced Raman spectra
UV-Vis absorption spectra
Silver colloid
Largehead atractylodes rhizomedecoction
作者简介
作者简介：陈伟炜，1985年生，福建师范大学生物医学光学专业研究生e-mail：wwchen072@163．com
通讯联系人e-mail：chenr@jnu．edu．cn
