Determination of Field-Incurred Chlorfluazuron Residues in the Peach

• Published in: Bulletin of environmental contamination and toxicology 2011-03, Vol.86 (3), p.331-335
• Main Authors: Choi, Jeong-Heui, Mamun, Md. Iqbal Rouf, Park, Jong-Hyouk, Shin, Eun-Ho, Shim, Jae-Han
• Format: Article
• Language: English
• Subjects: Agricultural production; Aquatic Pollution; chlorfluazuron; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Field-incurred residues; Fruits; Harvesting; HPLC-UVD; Insecticides; Insecticides - analysis; Insecticides - chemistry; peaches; Pesticide Residues - analysis; Pesticide Residues - chemistry; Phenylurea Compounds - analysis; Phenylurea Compounds - chemistry; Pollution; Prunus; Prunus - chemistry; Pyridines - analysis; Pyridines - chemistry; Soil Pollutants - analysis; Soil Pollutants - chemistry; Soil Science & Conservation; Toxicity; Waste Water Technology; Water Management; Water Pollution Control
• ISSN: 0007-4861; 1432-0800
• DOI: 10.1007/s00128-011-0191-5

Chlorfluazuron residues were determined in the peaches that were sprayed at dosage (a.i. 0.0167 kg 10a⁻¹), using an analytical method that was validated as follows; r ² = 0.9999, 0.02 mg kg⁻¹ (LOQ) and 87.8-93.6% (recovery). The residues from all samples were lower than the MRL (0.5 mg kg⁻¹, Korea). A maximum 0.27 mg kg⁻¹ of chlorfluazuron was detected in the samples applied at 6 days before harvest. The results signify that the 10% SC product would be used safely as an insecticide if it is applied two or three times onto peaches, with applications given until 6 days prior to harvest.