Abstract
A macroporous diatomaceous earth column was applied to the separation and simultaneous determination of pesticides in soil on a golf course. Two analytical procedures were used for this technique. One was GC/MS determination of cyproconazole, propiconazole, tetraconazole and triflumizole, and the other was HPLC/UV determination of azoxystrobin, flazasulfuron, halosulfuron-methyl and siduron. One enormous advantage of this column technique was the fact that surfactants sprayed together with pesticides produced no emulsion formation. It also made the separation process very simple and rapid in comparison with liquid-liquid extraction technique with a separating funnel. The recoveries of the pesticides spiked to the soil of a golf course were 84.4∼93.5 %, and the relative standard deviations were 0.7∼5.8 % by the proposed methods.
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