摘要
本文使用岛津GCMS-TQ8050 NX三重四极杆气相色谱质谱联用仪建立了测定水果中10种甲氧基丙烯酸酯类杀菌剂残留量的测定方法.水果样品由乙腈简单提取,经分散固相萃取试剂净化后上GC/MS/MS分析,大大减少了样品前处理过程.在0.5-200μg·L^-1浓度范围内10种甲氧基丙烯酸酯类杀菌剂线性关系良好,相关系数均达到0.998以上.5.0μg·L^-1标准品溶液连续进样6针,峰面积RSD%小于8%.实际样品加标回收率为93.5%-104.3%.该方法快速、简便、灵敏度高,完全满足食品安全分析对甲氧基丙烯酸酯类杀菌剂的检测要求.
A method for the determination of 10 kinds of strobilurin fungicides residues in fruits by gas chromatography-mass spectrometry with Shimadzu GC/MS-TQ8050 NX triple quadrupole was established. Fruit samples were extracted simply by acetonitrile, purified by dispersed solid phase extraction reagent and analyzed by GC/MS/MS, which greatly reduced the sample pretreatment process. The linearity of 10 kinds of Strobilurin fungicides residues was good in the range of 0.5-200 μg·L^-1, and the correlation coefficients were above 0.998. The standard solution of 5.0 μg·L^-1 was injected continuously for 6 needles, and the peak area RSD% was less than 8%. The recoveries of actual samples were 93.5%-104.3%. The method is rapid, simple and sensitive, and fully meets the requirements of food safety analysis for the detection of Strobilurin fungicides residues.
作者
张瑶
孙谦
马桂娟
龚慧
高琳
ZHANG Yao;SUN Qian;MA Guijuan;GONG Hui;GAO Lin(Ningxia Food Testing Research Institute, Yinchuan, 750001, China;Shimadzu (China) Co.Ltd.,Xi’an 710032, China)
出处
《环境化学》
CAS
CSCD
北大核心
2019年第5期1204-1206,共3页
Environmental Chemistry
