Record Display for the EPA National Library Catalog


Main Title Interface of a Reverse-Phase High-Performance Liquid Chromatograph with a Diffuse Reflectance Fourier Transform Infrared Spectrometer.
Author Conroy, C. M. ; Griffiths, P. R. ; Duff, P. J. ; Azarraga, L. V. ;
CORP Author California Univ., Riverside. Dept. of Chemistry. ;Ohio Univ., Athens. Dept. of Chemistry.;Environmental Research Lab., Athens, GA.
Year Published 1984
Report Number EPA-R-810430; EPA/600/J-84/228;
Stock Number PB85-160422
Additional Subjects Infrared spectroscopy ; Chemical analysis ; Environmental surveys ; Reprints ; High performance liquid chromatography ; Fourier transform spectroscopy
Library Call Number Additional Info Location Last
NTIS  PB85-160422 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
An approach to the interface of a reverse-phase high-performance liquid chromatograph and a Fourier transform infrared spectrometer has been developed in which the solutes eluting from the column are continuously extracted into dichloromethane. The application of both flow cell and solvent elimination techniques was explored. Coextracted water and methanol into the CH2Cl2 precluded the use of flow cells. In the solvent elimination interface, the solutes are first extracted into dichloromethane and subsequently concentrated by differential evaporation. The solutes are then deposited on gently heated KC1 powder, and their diffuse reflectance spectra are measured. The interface operates in a continuous fashion without the need for an auxiliary detector. Spectra can be measured at submicrogram sensitivity using this interface. (Copyright (c) 1984 American Chemical Society.)