Record Display for the EPA National Library Catalog


Main Title Estimation of Water Solubility and Octanol/Water Partition Coefficient of Hydrophobic Dyes. Part 2. Reverse-Phase High Performance Liquid Chromatography.
Author Hou, M. ; Baughman, G. L. ; Perenich, T. A. ;
CORP Author Environmental Research Lab., Athens, GA.;Georgia Univ., Athens. Dept. of Textiles, Merchandising and Interiors.
Publisher c1991
Year Published 1991
Report Number EPA/600/J-91/294;
Stock Number PB92-124338
Additional Subjects Water pollution ; Solubility ; Dyes ; Mathematical models ; Regression analysis ; Biological effects ; Octanols ; Water ; Biota ; Sediment-water interfaces ; Capacity ; Melting points ; Molecular weight ; Reprints ; Partition coefficients ; High performance liquid chromatography
Library Call Number Additional Info Location Last
NTIS  PB92-124338 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
Capacity factors were determined for 20 disperse and solvent dyes by a high performance liquid chromatographic method using methanol/water and a C-18 reverse-phase column. Regression equations are given that establish relationships among capacity factors, water solubilities and octanol/water partition coefficients. The method is easy to apply to commercial dyes with resulting estimations that are accurate to better than one order of magnitude. Possible sources of error are discussed and suggested as implicit in the method when applied to dyes. The regressions are also used to estimate the octanol/water partition coefficients and solubilities for 14 other disperse dyes and for indigo, none of which have been measured previously. The estimated values for all of the dyes correspond to calculated sediment/water partition coefficients and bioconcentration factors, ranging from about 2.3 to 8.5 and from 2 to 7 log units, respectively. (Copyright (c) 1991 Elsevier Science Publishers Ltd, England.)