Determination of phenoxyacid herbicides in water.

  title={Determination of phenoxyacid herbicides in water.},
  author={Ren{\'e} Bernard Geerdink and A M Graumans and J Viveen},
  journal={Journal of chromatography},
  volume={547 1-2},
Novel clean-up techniques for a polymeric precolumn (PLRP-S) for the subsequent determination of bentazone and eight phenoxy acid herbicides in surface water samples are described. After preconcentration of the components at pH 3 on a 10 x 2 mm I.D. precolumn, the technique consists of a clean-up with 1000 microliters of 0.1 mol/l sodium hydroxide solution (pH 12.5) and of a heartcut consisting of four precolumn bed volumes of eluent directed to waste followed by ten precolumn bed volumes of… CONTINUE READING