Abstract: Purpose: A reversed-phase high performance liquid chromatographic method with PDA was used for the residue analysis of triabendazole in Peruvian ground cherry. Methods: The HPLC conditions were as follows: the column was Shim-pack VP-ODS 150 mm × 4.6 mm. CH3CN:0.02mol/L H3PO4 (pH 6.8) = 70:30 (V/V) as mobile phase, flow rate 0.6 mL /min, injection volume 20 μL and detection wavelength 299 nm. Results: Good linearity of triabendazole was obtained over the range of 0.10-90.0 μg/mL (r = 0.9995). The detection limits were 0.05 μg/mL for triabendazole. The average recoveries ranged from 87.9% to 102.6% with relative standard deviation of 0.98%-2.79%. Conclusions: The method is fast and simple for the residue detection and analysis of triabendazole in Peruvian ground cherry.

Key words: triabendazole, residue analysis, reversed-phase high performance liquid chromatographic (RP-HPLC), Peruvian ground cherry