Monitoring and risk assessment of tepraloxydim in banana (Musa paradisiaca) and sweet orange (Citrus sinensis)
2020
Lim, Sung-Jin | Jeong, Du-Yun | Jin, Yong-Duk | Ro, Jin-Ho
This study was conducted to analyze the residue levels of tepraloxydim in banana and sweet orange. Successive liquid–liquid extraction and cartridge clean-up method for tepraloxydim determination in banana and sweet orange were developed and validated by HPLC. The developed method was validated, and the recovery and LOQ of tepraloxydim were 79.3–99.5% and 0.02 mg kg⁻¹, respectively. Among the 48 banana and 34 sweet orange samples, tepraloxydim was detected in two (0.03 mg kg⁻¹) and four samples (0.03–0.05 mg kg⁻¹), respectively. A risk assessment of tepraloxydim in banana and sweet orange was conducted by calculating the percent ratio of estimated daily intake (EDI) and acceptable daily intake (ADI). The ADI of tepraloxydim was 0.05 mg kg⁻¹ day⁻¹, and the EDIs of it from banana and sweet orange were 6.3 × 10⁻⁶ and 5.1–8.5 × 10⁻⁶, respectively. The percent of EDI to ADI of tepraloxydim was 0.013 and 0.010–0.017%, respectively. These results showed that the tepraloxydim levels in this study might not be harmful to human beings.
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