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Stereoselective analysis of acid herbicides in natural waters by capillary electrophoresis
Author(s) -
Polcaro Chiara M.,
Marra Carolina,
Desiderio Claudia,
Fanali Salvatore
Publication year - 1999
Publication title -
electrophoresis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/(sici)1522-2683(19990801)20:12<2420::aid-elps2420>3.0.co;2-p
Subject(s) - capillary electrophoresis , chemistry , chromatography , enantiomer , solid phase extraction , resolution (logic) , extraction (chemistry) , environmental chemistry , organic chemistry , artificial intelligence , computer science
A capillary electrophoretic method for the stereoselective analysis of aryloxypropionic and aryloxyphenoxypropionic acidic herbicides in ground water and river water was performed. Vancomycin and γ‒cyclodextrin were added to the background electrolyte (BGE) as chiral selectors. Water sample preconcentration was accomplished by solid‒phase extraction on styrene‒divinylbenzene packed cartridges (2 L of ground water and 1 L of river water). The analytical method allowed for the resolution of mecoprop, fenoprop, fluazifop and haloxyfop racemic mixtures in natural water samples spiked with enantiomer concentration levels in the range 0.1—0.13 ppb for ground water and 0.4—0.54 ppb for river water.