UV detection of triazine herbicides and their hydroxylated and dealkylated degradation products in well water.
The aim of this work was to develop a simple method to confirm the presence of hydroxytriazine products (hydroxyatrazine, hydroxysimazine, hydroxyethylterbutyltriazine and hydroxydiaminotriazine) in water and to apply it to well water samples. The hydroxytriazines were concentrated on a Sep-Pak C18 cartridge. Analysis was performed by HPLC using an RP8-DB column with phosphate buffer (pH 4.7)-acetonitrile (72:28, v/v) as the mobile phase and photodiode-array detection at 233 nm. Hydroxyatrazine, hydroxysimazine and hydroxyethylterbutyltriazine were detected at ppb levels in samples from two shallow wells under a very sandy soil citrus orchard taken at three different times in a 1-year period.
Saez
A
A
Laboratorio Agroalimentario, Conselleria de Agricultura Pesca y Alimentacion, Burjasot (Valencia), Spain.
Gómez de Barreda
D
D
Gamon
M
M
Garcia de la Cuadra
J
J
Lorenzo
E
E
Peris
C
C
D002851:Chromatography, High Pressure Liquid / Q000379:methods* / Q000706:statistics & numerical data; D006540:Herbicides / Q000032:analysis*; D006900:Hydroxylation; D013056:Spectrophotometry, Ultraviolet; D014227:Triazines / Q000032:analysis*; D014867:Water / Q000032:analysis*
D006540:Herbicides; D014227:Triazines; D014867:Water