Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Separation of T-MAZ Ethoxylated Sorbitan Fatty Acid Esters by Supercritical Fluid Chromatography.
Author Ye, M. Y. ; Hill, K. D. ; Walkup., R. G. ;
CORP Author ManTech Environmental Technology, Inc., Ada, OK.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Publisher c1994
Year Published 1994
Report Number EPA-68-C8-0025; EPA/600/J-94/175;
Stock Number PB94-163540
Additional Subjects Supercritical fluid chromatography ; Carboxylic acid esters ; Pollution control ; Capillaries ; Columns(Process engineering) ; Supercritical pressure ; Surfactants ; Elution ; Solubility ; Viscosity ; Decontamination ; Surface contamination ; Emulsifiers ; Mixtures ; Diffusion coefficient ; Reprint ; SFC(Supercritical fluid chromatography) ; In situ remediation ; T-MAZ(T-MAZ ethoxylated sorbitan fatty acid esters)
Library Call Number Additional Info Location Last
NTIS  PB94-163540 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 09/01/1994
Collation 7p
The application of supercritical fluid chromatography (SFC) to the analysis of T-MAZ ethoxylated sorbitan fatty acid esters is described. SFC separation methods utilize a density programming technique and a 50 micrometer I.D. capillary column. This work demonstrates that capillary column SFC is a powerful technique for the analysis of complex mixtures of many derivatives of ethoxylated sorbitan fatty acids which is not amenable to gas chromatography or gel permeation chromatography. This work also demonstrates that complex distributions of polyethylene glycol can be resolved. The results of the study show how changes in chromatographic parameters affect the SFC analysis. (Copyright (c) 1994 Elsevier Science B.V.)