Anomalous Dispersion Effects in the IR-ATR Spectroscopy of Water-Reference-Cited by-同舟云学术

Anomalous Dispersion Effects in the IR-ATR Spectroscopy of Water

Published:2000-01 Issue:1 Volume:54 Page:138-143
ISSN:0003-7028
Container-title:Applied Spectroscopy
language:en
Short-container-title:Appl Spectrosc

Author:

Hancer Mehmet¹,Sperline Roger P.¹,Miller Jan D.¹

Affiliation:

1. Department of Metallurgical Engineering, 412 William C. Browning Building, University of Utah, Salt Lake City, Utah 84112 (M.H., J.D.M.); and 4600 N. Ave. del Cazador, Tucson, Arizona 85718 (R.P.S.)

Abstract

The distortion of band shapes seen in infrared attenuated total reflection (IR-ATR) spectroscopy of strongly absorbing materials such as water, relative to transmission sampling, is shown here to be due to the anomalous dispersion (AD) of water. This distortion occurs in addition to the normal 1/ v dependence, and, contrary to previous reports, is shown to not be due to chemical changes of water at the interface between the optical element and bulk solution. IR-ATR spectra of water were modeled with approximation-free calculations. The modeled spectra are compared with experimental ATR spectra for different internal reflection elements, and the results are discussed in terms of the AD optical effect.

Publisher

SAGE Publications

Subject

Spectroscopy,Instrumentation

Link

http://journals.sagepub.com/doi/pdf/10.1366/0003702001948222

Reference29 articles.

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4. Analysis of Interfacial Water at a Hydrophilic Silicon Surface by in-Situ FTIR/Internal Reflection Spectroscopy

5. Electrokinetic behavior of selected alkali and alkaline-earth fluoride salts in organic solvents

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