Multiresidue method for determination of sulfonylurea herbicides in water by liquid chromatography with confirmation by capillary electrophoresis.
J AOAC Int
; 82(6): 1523-33, 1999.
Article
em En
| MEDLINE
| ID: mdl-10589503
ABSTRACT
A liquid chromatographic method with comfirmation by capillary electrophoresis was used to determine 12 sulfonylurea herbicides in agricultural water. Analysis of 3 different water matrixes fortified at 2 levels gave good recoveries with adequate sensitivity at the 0.1 ppb level. A portion of the water was acidified with acetic acid and loaded onto an RP-102 solid-phase extraction (SPE) cartridge, and the extract was cleaned up on an alumina SPE cartridge. Extracts were desalted with an RP-102 SPE cartridge before instrumentation. Samples needing chemical filtration, such as pond water, required additional cleanup with a SAX SPE cartridge before the alumina cleanup step. Data were compiled for both determinative techniques and evaluated.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Compostos de Sulfonilureia
/
Água
/
Resíduos de Praguicidas
/
Cromatografia Líquida
/
Herbicidas
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
J AOAC Int
Ano de publicação:
1999
Tipo de documento:
Article
País de afiliação:
Estados Unidos