CAJ | 학술논문

建立了柑橘中虱螨脲、灭幼脲、氟啶脲和除虫脲4种苯甲酰脲类农药同时检测的超高效液相色谱-三重四级杆串联质谱( UPLC-MS/MS)分析方法。样品采用QuEChERS前处理技术，超高效液相色谱-串联质谱电喷雾负离子模式检测测定。结果表明：在0.01~0.2μg/mL范围内，4种供试农药的质量浓度与其相应的峰面积间呈良好的线性关系，相关系数( r )均大于0.994。在0.01、0.05和0.1 mg/kg 3个添加水平下，4种农药的平均回收率为92％~105％，相对标准偏差(RSD)为0.4％~3.3％(n＝5)。4种农药在柑橘中的定量限(LOQ)均为0.01 mg/kg。该方法准确、灵敏、简单，适用于同时测定柑橘中4种苯甲酰脲类农药的残留量。
건립료감귤중슬만뇨、멸유뇨、불정뇨화제충뇨4충분갑선뇨류농약동시검측적초고효액상색보-삼중사급간천련질보( UPLC-MS/MS)분석방법。양품채용QuEChERS전처리기술，초고효액상색보-천련질보전분무부리자모식검측측정。결과표명：재0.01~0.2μg/mL범위내，4충공시농약적질량농도여기상응적봉면적간정량호적선성관계，상관계수( r )균대우0.994。재0.01、0.05화0.1 mg/kg 3개첨가수평하，4충농약적평균회수솔위92％~105％，상대표준편차(RSD)위0.4％~3.3％(n＝5)。4충농약재감귤중적정량한(LOQ)균위0.01 mg/kg。해방법준학、령민、간단，괄용우동시측정감귤중4충분갑선뇨류농약적잔류량。
A ultra performance liquid chromatography-tandem mass spectrometry ( UPLC-MS/MS ) method for the simultaneous determination of 4 benzoylurea pesticides ( lufenuron, chlorbenzuron, chlorfluazuron and diflubenzuron ) in citrus fruits was established. The procedure was based on QuEChERS cleanup and determination with UPLC-MS/MS. The results showed that the calibration curve was linear in the range of 0. 01-0. 2 mg/mL and correlation coefficient(r) higher than 0. 994. The average recoveries of 4 pesticides were 92% -105% when the spiked levels were 0. 01 , 0. 05 and 0. 1 mg/kg, with relative standard deviations (RSD) between 0. 4% and 3. 3% (n=5). The limits of quantitation ( LOQ) for 4 pesticides were 0. 01 mg/kg. The method is accurate, sensitive, simple, suitable for the simultaneous determination of 4 pesticide residues in citrus fruits.