The effects of buffer pH on electrophoretic mobility of various s-triazines (chloro-, hydroxy-, methoxy- and thiomethyl-s-triazines) in light of their chemical properties have been studied. Good separation was achieved for each class of s-triazines as cations, except for the chlorotriazines, with buffer pH around the pKa of the herbicides, as well as at a pH of pKa − 2. Migration times were correlated with molecular masses (as a first approximation of molecular size and shape). Possible hydrophobic wall interactions were detected at acidic pH and low voltage. Separation of hydroxytriazine metabolites as anions could also be achieved at a high pH of around 8. The detection level calculated for most of these s-triazines was μg/ml of analyte in the injection solution.
%0 Journal Article
%1 schmitt1996sst
%A Schmitt, P.
%A Garrison, AW
%A Freitag, D.
%A Kettrup, A.
%D 1996
%I Elsevier
%J Journal of Chromatography A
%K imported
%N 1
%P 169--177
%T Separation of s-triazine herbicides and their metabolites by capillary zone electrophoresis as a function of pH
%V 723
%X The effects of buffer pH on electrophoretic mobility of various s-triazines (chloro-, hydroxy-, methoxy- and thiomethyl-s-triazines) in light of their chemical properties have been studied. Good separation was achieved for each class of s-triazines as cations, except for the chlorotriazines, with buffer pH around the pKa of the herbicides, as well as at a pH of pKa − 2. Migration times were correlated with molecular masses (as a first approximation of molecular size and shape). Possible hydrophobic wall interactions were detected at acidic pH and low voltage. Separation of hydroxytriazine metabolites as anions could also be achieved at a high pH of around 8. The detection level calculated for most of these s-triazines was μg/ml of analyte in the injection solution.
@article{schmitt1996sst,
abstract = {The effects of buffer pH on electrophoretic mobility of various s-triazines (chloro-, hydroxy-, methoxy- and thiomethyl-s-triazines) in light of their chemical properties have been studied. Good separation was achieved for each class of s-triazines as cations, except for the chlorotriazines, with buffer pH around the pKa of the herbicides, as well as at a pH of pKa − 2. Migration times were correlated with molecular masses (as a first approximation of molecular size and shape). Possible hydrophobic wall interactions were detected at acidic pH and low voltage. Separation of hydroxytriazine metabolites as anions could also be achieved at a high pH of around 8. The detection level calculated for most of these s-triazines was μg/ml of analyte in the injection solution.
},
added-at = {2009-01-09T10:24:31.000+0100},
author = {Schmitt, P. and Garrison, AW and Freitag, D. and Kettrup, A.},
biburl = {https://www.bibsonomy.org/bibtex/29d4f039139e3c51af7fc30411b0e353a/zemolina},
interhash = {414073b98dea59d5292f2438de902d89},
intrahash = {9d4f039139e3c51af7fc30411b0e353a},
journal = {Journal of Chromatography A},
keywords = {imported},
number = 1,
pages = {169--177},
publisher = {Elsevier},
timestamp = {2009-01-09T10:24:31.000+0100},
title = {Separation of s-triazine herbicides and their metabolites by capillary zone electrophoresis as a function of pH},
volume = 723,
year = 1996
}