Liquid chromatographic determination of carbendazim in the presence of some normal soil constituents with photodiode-array detection.

A reversed-phase high-performance liquid chromatographic method was developed for the determination of carbendazim in the presence of some normal soil constituents (kaolinite, montmorillonite and peat). Spiked aqueous soil samples were injected after centrifugation and filtration. Quantitative recoveries were observed and good precision was obtained. The concentration range studied, 1.6716-8.3580 mg/l, is the most suitable for adsorption-desorption studies of carbendazim on soil and soil constituents.