建立了多种水果和饮料中氟嘧菌酯和嘧螨酯残留的超高效液相色谱测定方法.样品用乙酸乙酯-环己烷(体积比为1∶1)超声波萃取,凝胶渗透色谱法净化,超高效液相色谱-二极管阵列检测器检测,外标法定量.采用 BEH C18色谱柱(50 mm×2.1 mm,1.7 μm),流动相为水-乙腈(体积比为3∶7),流速为0.3 mL/min,柱温为40 ℃,紫外检测波长为251 nm.实验结果表明:氟嘧菌酯和嘧螨酯在0.05～2 mg/L 范围内线性关系良好(r>0.999),在不同的基质中添加3个浓度水平(0.01,0.05,0.1 mg/kg)的氟嘧菌酯和嘧螨酯,两者的回收率均在82.60% ～101.11%之间,相对标准偏差为5.4% ～15.3% ;检出限不大于6 μg/kg,定量限不大于20 μg/kg.
参考文献
| [1] | US Environment Protection Agency.Pesticide fact sheet.[2005-10].http:/ /www.epa.gov/opprd001/factsheets/fluoxastrobin.pdf |
| [2] | Yin J J,Ma H Y,Guan A Y,et al.Pesticides (殷锦捷,马海云,关爱莹,等.农药),2003,42(3):40 |
| [3] | Huser-Hahn,P Baur,Schmitt W.Pflanzenschutz-Nchrichten Bayer,2004,57(3):437 |
| [4] | Reuveni M.Crop Prot,2001,20:663 |
| [5] | McCartney C,Mereer P C,Cooke L R,et al.Crop Protection,2007,26:1272 |
| [6] | Li H P.Jiangsu Chemical Technology (李海屏.江苏化工),2004,32(6):9 |
| [7] | Liu C L.Pesticides (刘长令.农药),2007,46(4):266 |
| [8] | Liu C L,Guan A Y,Liu Z L.World Pesticides (刘长令,关爱莹,刘振龙.世界农药),2002,24(4):44 |
| [9] | Huang S Q,Zhang Z X,Xu H H,et al.Pesticides (黄素青,张志祥,徐汗虹,等.农药),2005,44(2):81 |
| [10] | US Environment Protection Agency.Federal Register,2005,70(179):54640 |
| [11] | World Trade Organization.Committee on sanitary and phytosanitary measure:notification (G/SPS/N/USA/1119)[2005-09-30].http:/ /www.uae.gov.ae/uaeagricent/sps/files/NUSA1119.doc |
| [12] | Preu M.Pflanzenschutz-Nchrichten Bayer,2004,57(3):355 |
| [13] | Wu G,Bao X X,Wang H X,et al.Chinese Journal of Chromatography (吴刚,鲍晓霞,王华雄,等.色谱),2008,26(5):577 |
| [14] | Hu B Z,Song W H,Xie L P,et al.Chinese Journal of Chromatography (胡贝贞,宋伟华,谢丽萍,等.色谱),2008,26(5):608 |
| [15] | Yang Fang,Lu S Y,Chen X M,et al.Chinese Journal of Chromatography (杨方,卢声宇,陈祥明,等.色谱),2008,26 (4):499 |
| [16] | Yu S L,Yang G P,Fu M.Chinese Journal of Chromatography (于胜良,杨桂朋,付萌.色谱),2007,25 (4):581 |
| [17] | Bo H B,Bi Y,Chen L R.Chinese Journal of Analytical Chemistry (薄海波,毕阳,陈立仁.分析化学),2005,33(5):695 |
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