SILVER COLLOID SURFACE RAMAN-SPECTRA OF PHENYLPROPANOLAMINE AND ITS DERIVATIVE

被引：7

作者：

LI, YS

LEE, AS

WANG, Y

机构：

[1] Department of Chemistry, Memphis State University, Memphis, Tennessee

来源：

JOURNAL OF RAMAN SPECTROSCOPY | 1991年 / 22卷 / 03期

关键词：

D O I：

10.1002/jrs.1250220310

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The silver colloid surface-enhanced Raman scattering (SERS) spectrum of phenylpropanolamine (PPA) and the surface-enhanced resonance Raman scattering (SERRS) spectrum of the PPA-ninhydrin reaction product were studied. It was found that the spectral intensity varied with time, and the rate of the variation was related to the PPA concentration. From scanning electron microscopic photographs taken at different times, the SERS intensity appeared to be correlated with the coagulation of silver particles. Temperature was found to be another factor that would change the kinetic rate of the coagulation. Addition of potassium chloride served effectively to activate the surface-enhanced effect and to reduce the time required to reach maximum intensity. The rate of activation was found to be dependent on the concentration.

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页码：191 / 196

页数：6

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