Liu Sai, Li Jian-Ling, Chen Jun, Wei He, Qiao Hai-Li, Xu Rong, Guo Kun, Lin Chen, Jin Hong-Yu, Ma Shuang-Cheng, Xu Chang-Qing
Institute of Medicinal Plant Development, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100193, China.
Research and Inspection Center of Traditional Chinese Medicine and Ethnomedicine, National Institutes for Food and Drug Control, Beijing 100050, China.
Zhongguo Zhong Yao Za Zhi. 2016 May;41(10):1815-1818. doi: 10.4268/cjcmm20161009.
The safety interval period and residue dynamics of two main components (XDE-175-J and XDE-175-L) of spinetoram in wolfberry were measured. Field experiment design and sampling method were carried out according to the "Guideline on pesticide residue trials". The wolfberry samples were extracted with acetonitrile by ultrasonic, and analyzed by UPLC-MS/MS. The wolfberry was sprayed with 6% spinetoram suspension concentrate (SC) at recommended dosage (1 500 times) and doubling dosage (750 times) (one time) at fructescence of wolfberry. The half-lives of spinetoram residue under recommended dosage treatment was 3.65-4.25 d, and all the fresh and dried fruits conform to first order kinetics equation. The dissipation rate was over 95% in fresh and dried fruits at 14 d after application. In conclusion, spinetoram belongs to the easily degradable pesticide type.
测定了多杀霉素在枸杞中的两个主要成分（XDE-175-J和XDE-175-L）的安全间隔期和残留动态。按照《农药残留试验准则》进行田间试验设计和采样方法。枸杞样品用乙腈超声提取，并用超高效液相色谱-串联质谱法进行分析。在枸杞结果期，以推荐剂量（1500倍）和加倍剂量（750倍）（一次）对枸杞喷施6%多杀霉素悬浮剂。推荐剂量处理下多杀霉素残留的半衰期为3.65-4.25天，所有鲜果和干果均符合一级动力学方程。施药后14天，鲜果和干果中的消解率均超过95%。综上所述，多杀霉素属于易降解农药类型。
