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LC-MS/MS를 이용한 축산물 중 spinosad의 분석법 개발
( Musfiqur Rahman ),( Abd El Aty ),정형석 ( Hyung Suk Chung ),( Humayun Kabir ),이한솔 ( Han Sol Lee ),심재한 ( Jae-han Shim ) 한국환경농학회 2017 한국환경농학회 학술대회집 Vol.2017 No.-
A simple and effective method was developed for analysis of spinosad (spinosyn A and spinosyn D) in five animal origin products (chicken, pork, beef, table egg, and milk) using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Sample was extracted with acetonitrile and salt and purified via dispersive solid phase extraction (d-SPE) procedure using multi-walled carbon nanotubes (MWCN). The limits of quantification (LOQ) were maintained ten times lower than the maximum residue limits (MRL) followed by Codex guideline and were ranged between 0.001 and 0.1 mg/kg. Seven points matrix matched external calibration curves were prepared for each of the matrices and good linearity was observed with determination coefficients (R<sup>2</sup>)≥0.997. Method was validated in triplicate with three fortification levels at LOQ, 2LOQ and 10LOQ. A good recovery was observed for each of the fortification levels and was ranged between 73.84 and 103.60% with relative standard deviation (RSD) ≤ 9.68. The method can be extrapolated to other matrices for routine analysis of spinosad in livestock products or other matrices.