CHEMICALLY MODIFIED ELECTRODES .18. FLUORESCENCE AND X-RAY PHOTOELECTRON-SPECTROSCOPY SURFACE ANALYSIS OF METAL-OXIDE ELECTRODES CHEMICALLY MODIFIED WITH DANSYLATED ALKYLAMINESILANES

被引：32

作者：

WHITE, HS ^{[1
]}

MURRAY, RW ^{[1
]}

机构：

[1] UNIV N CAROLINA, DEPT CHEM, CHAPEL HILL, NC 27514 USA

来源：

ANALYTICAL CHEMISTRY | 1979年 / 51卷 / 02期

关键词：

D O I：

10.1021/ac50038a020

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Dansyl chloride is coupled to an alkylamlnesilane bound to a metal oxide electrode surface and the sulfonamide hydrolytically cleaved from the surface. Fluorometrlc analysis of the hydrolysate sulfonamide concentration assays its surface concentration at 0.5-2X10-10 mol/cm2. XPES determination of sulfonamide reaction coupling efficiency yields an average alkylaminesilane coverage of 2.6X10-10 mol/cm2. A small amount of coadsorbed dansyl chloride was detected and quantitatively distinguished from sulfonamide hydrolysate using the fluorescence spectrum. © 1979, American Chemical Society. All rights reserved.

引用

页码：236 / 239

页数：4

共 19 条

[1] LIMITING OXYGEN COVERAGE ON PLATINIZED PLATINUM - RELEVANCE TO DETERMINATION OF REAL PLATINUM AREA BY HYDROGEN ADSORPTION [J].