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Molecularly imprinted silica as a selective SPE sorbent for triazine herbicides
Author(s) -
Gomes Costa Silva Raquel,
Rosa Morais Vigna Camila,
Bottoli Carla B. G.,
Collins Carol H.,
Augusto Fabio
Publication year - 2010
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.200900785
Subject(s) - sorbent , simazine , molecularly imprinted polymer , triazine , chemistry , atrazine , acrylate , chromatography , silica gel , analyte , polymer , adsorption , organic chemistry , selectivity , pesticide , copolymer , biology , catalysis , agronomy
A molecularly imprinted organically modified silica was prepared through a simple sol‐gel procedure and evaluated as a specific sorbent for SPE of triazine herbicides. The material proved to be highly selective for the template molecule, atrazine, as well as for other structurally related species such as simazine and propazine. The performance of this material was shown to be comparable with commercial acrylate‐based molecularly imprinted polymers. The molecularly imprinted silica was applied for the determination of trace levels of the target triazine analytes in sugar cane juice (locally called “garapa”).