FT-IR Internal Reflection Spectroscopy Using Regular Polygonal Internal Reflection Elements

1 June 1998

journal article
research article
Published by SAGE Publications in Applied Spectroscopy

Vol. 52 (6) , 851-854
https://doi.org/10.1366/0003702981944382

Abstract

Regular polygonal reactive internal reflection elements (IREs) have been designed and fabricated for Fourier transform infrared (FT-IR) internal reflection spectroscopy (IRS) to study adsorption phenomena at the IRE surface. The geometric and optical features of these polygonal IREs are described with respect to the use of the FT-IR/IRS adsorption density equation. An octagonal internal reflection element of fluorite (CaF₂) was prepared with 3 mm sides, and adsorption at the polygon faces was examined by FT-IR/IRS. Adsorption densities thus determined at the surface of the polygonal IRE were found to compare well with those determined at the surface of the parallelepiped IREs of the same material. The utility of regular polygonal IREs, including the advantages and disadvantages, is discussed.

Keywords

This publication has 9 references indexed in Scilit:

The significance of collector colloid adsorption phenomena in the fluorite/oleate flotation system as revealed by FTIR/IRS and solution chemistry analysis
International Journal of Mineral Processing, 1996
Verification of the internal reflection spectroscopy adsorption density equation by Fourier transform infrared spectroscopy analysis of transferred Langmuir-Blodgett films
Langmuir, 1993
Fourier transform infrared attenuated total reflection spectroscopy linear dichroism study of sodium dodecyl sulfate adsorption at the alumina/water interface using alumina-coated optics
Langmuir, 1992
In-Situ Internal Reflection Spectroscopy for the Study of Surfactant Adsorption Reactions Using Reactive Internal Reflection Elements
Separation Science and Technology, 1990
Adsorption Density Calculations from in Situ FT-IR/IRS Data at Dilute Surfactant Concentrations
Applied Spectroscopy, 1989
Attenuated total reflectance Fourier transform infrared studies of the interaction of melittin, two fragments of melittin, and .delta.-hemolysin with phosphatidylcholines
Biochemistry, 1987
In situ determination of species adsorbed at a solid-liquid interface by quantitative infrared attenuated total reflectance spectrophotometry
Langmuir, 1987
SURFACE CHEMISTRY FROM SPECTRAL ANALYSIS OF TOTALLY INTERNALLY REFLECTED RADIATION^*
The Journal of Physical Chemistry, 1960
Study of Physics and Chemistry of Surfaces from Frustrated Total Internal Reflections
Physical Review Letters, 1960