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RECORD NUMBER: 104 OF 137

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Main Title

Quantitative Analysis of Aqueous Species Using Raman Spectrometry and Equilibrium Model Calculations.

Author

Sorensen, J. A. ; Thompson, L. C. ; Glass, G. E. ;

CORP Author

Minnesota Univ.-Duluth. Dept. of Chemistry.;Environmental Research Lab.-Duluth, MN.

Year Published

1985

Report Number

EPA/600/J-85/081;

Stock Number

PB85-232304

Additional Subjects

Chemical analysis ; Raman spectroscopy ; Chemical equilibrium ; Environmental surveys ; Water pollution ; Mathematical models ; Comparison ; Complex compounds ; Ecology ; Copper ; Neodymium ; Reprints ; Water pollution detection ; Numerical solution ; Dipicolinic acid

Holdings

Library	Call Number	Additional Info	Location	Last Modified	Checkout Status
NTIS	PB85-232304	Some EPA libraries have a fiche copy filed under the call number shown.		07/26/2022

Collation

Abstract

An analytical approach of quantifying various chemical species, using Raman spectrometry in conjunction with equilibrium modeling, has been tested on aqueous solutions containing Nd, Cu, and dipicolinic acid. Equilibrium modeling was used to select optimum conditions in simple solutions for the determination of concentration-Raman intensity relationships. These relationships were then used to interpret spectra from more complex solutions and to make comparisons with equilibrium modeling results from the same systems. Peak heights were determined through curve fitting of the spectra using nonlinear regression and were normalized using ClO4(-1) as an internal standard.

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