4Ouyang X, Zhang W, Xu J, et al. Determination of sulfonylurea herbicidesin water using solid-phase extraction followed by liquid chroma- tographywith electros pray ion trap mass spectrometry[J]. Journal of Analytical Chemistry,2009,64(9) :953-940.
5Carolina Q M, Monsluddel O I,Ana M,et al. Trace determination of sulfonylurea herbicides in water and grape samples by capillary zone electropboresis using large volume sample stacking[J]. Analytical and Bioanalytical Chemistry,2010,397(6) :2593-2601.
