OCTADECYLTHIOL-MODIFIED SURFACE-ENHANCED RAMAN-SPECTROSCOPY SUBSTRATES - A NEW METHOD FOR THE DETECTION OF AROMATIC-COMPOUNDS

被引：86

作者：

CARRON, K

PEITERSEN, L

LEWIS, M

机构：

[1] Department of Chemistry, University of Wyoming, Laramie

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1992年 / 26卷 / 10期

关键词：

D O I：

10.1021/es00034a011

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A method for detection of aromatic organics in groundwater has been tested. It was found that use of surface-enhanced Raman scattering and an octadecylthiol coating on roughened silver produced a system which could partition the organics out of water into the strongly Raman enhanced region near the silver surface. The selectivity of the method was illustrated with the three isomers of xylene. Sensitivity was tested with benzene and naphthalene. The detection limits are 7.5 and 2.3 ppm for benzene and naphthalene, respectively. It was found that the calibrations followed a Langmuir-type isotherm at low solution concentrations.

引用

页码：1950 / 1954

页数：5

共 22 条

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