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KMID : 0380620130450020148
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Korean Journal of Food Science and Technology
2013 Volume.45 No. 2 p.148 ~ p.155
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Development and Validation of an Analytical Method for the Insecticide Sulfoxaflor in Agricultural Commodities using HPLC-UVD
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Do Jung-Ah
Lee Mi-Young
Park Hye-jin
Kwon Ji-Eun
Jang Hyo-jin
Cho Yoon-Jae
Kang Il-Hyun
Lee Sang-Mok
Chang Moon-Ik
Oh Jae-Ho
Hwang In-Gyun
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Abstract
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Sulfoxaflor is a new active ingredient within the sulfoximine insecticide class that acts via a unique interaction with the nicotinic receptor. The MRLs (maximun residue limit) of sulfoxaflor in apple and pear are set at 0.4 mg/kg and that in pepper is set at 0.5 mg/kg. The purpose of this study was to develop an analytical method for the determination of sulfoxaflor residues in agricultural commodities using HPLC-UVD and LC-MS. The analysis of sulfoxaflor was performed by reverse phase-HPLC using an UV detector. Acetone and methanol were used for the extraction and aminopropyl (NH2) cartridge was used for the clean-up in the samples. Recovery experiments were conducted on 7 representative agricultural products to validate the analytical method. The recoveries of the proposed method ranged from 82.8% to 108.2% and relative standard deviations were less than 10%. Finally, LC-MS with selected ion monitoring was also applied to confirm the suspected residues of sulfoxaflor in agricultural commodities.
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KEYWORD
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sulfoxaflor, insecticide, agricultural commodities, HPLC-UVD
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