INTEGRATED OPTICAL ATTENUATED TOTAL REFLECTION SPECTROMETRY OF AQUEOUS SUPERSTRATES USING PRISM-COUPLED POLYMER WAVE-GUIDES

被引：61

作者：

SAAVEDRA, SS

REICHERT, WM

机构：

[1] DUKE UNIV,DEPT BIOMED ENGN,DURHAM,NC 27706

[2] DUKE UNIV,CTR EMERGING CARDIOVASC TECHNOL,DURHAM,NC 27706

来源：

ANALYTICAL CHEMISTRY | 1990年 / 62卷 / 20期

关键词：

D O I：

10.1021/ac00219a019

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Attenuated total reflection (ATR) spectrometry of aqueous solutions in contact with polystyrene Integrated optical waveguides has been investigated. The mode-dependent absorption of evanescent energy by fluorescein solutions adjacent to the waveguide surface was measured and compared to theoretical predictions based on a ray optics approach. Although enhanced sensitivity was observed with increasing mode number, the sensitivity for the highest order mode was less than that predicted by theory. © 1990, American Chemical Society. All rights reserved.

引用

页码：2251 / 2256

页数：6

共 17 条

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