Pesticides
The unique selectivity of theUltra IBD columnwas used
todevelop a two-columnmethod for analyzing amixture
of the 17 triazine, phenylurea, and carbamate pesticides
andmetabolites shown inFigure 7. Figure 8 shows the
separation on theUltraC18 column inwhich 15 of the 17
compounds are resolved. Figure 9 shows that anUltra
IBD columnwith the same conditions also resolves 15
out of 17 compounds, but the pesticides that coelute on
theC18 arewell resolved, as indicatedby the arrows.
