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Sensitive analyses of agricultural chemicals by capillary electrochromatography
Author(s) -
Starkey Jason A.,
Abrantes Shirley,
Mechref Yehia,
Novotny Milos V.
Publication year - 2003
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.200301600
Subject(s) - capillary electrochromatography , chromatography , chemistry , electrochromatography , matrix (chemical analysis) , detection limit , carbamate , capillary electrophoresis , capillary action , analyte , materials science , organic chemistry , composite material
Capillary electrochromatography using a monolithic matrix was employed to develop a rapid and highly efficient separation methodology for the analyses of mixtures of agrochemical importance. Using this method, ppm‐ppb detection limits for urea, carbamate, and phenoxy acid herbicides were achieved without a preconcentration technique. The detection limits were further decreased to low‐ppb levels for the same class of compounds using an on‐column preconcentration technique.