Residue degradation dynamics of spinetoram in wolfberry.

Sai Liu; Jian-ling LI; Jun Chen; He Wei; Hai-li Qiao; Rong XU; Kun Guo; Chen Lin; Hong-yu Jin; Shuang-cheng MA; Chang-qing XU

Return

Residue degradation dynamics of spinetoram in wolfberry.

Author: Sai LIU ¹ ; Jian-Ling LI ¹ ; Jun CHEN ¹ ; He WEI ² ; Hai-Li QIAO ¹ ; Rong XU ¹ ; Kun GUO ¹ ; Chen LIN ¹ ; Hong-Yu JIN ² ; Shuang-Cheng MA ² ; Chang-Qing XU ¹
Author Information

1. Institute of Medicinal Plant Development, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100193, China.
2. Research and Inspection Center of Traditional Chinese Medicine and Ethnomedicine, National Institutes for Food and Drug Control, Beijing 100050, China.
Publication Type:Journal Article
Keywords: decline dynamic; residue; spinetoram; wolfberry
From: China Journal of Chinese Materia Medica 2016;41(10):1815-1818
CountryChina
Language:Chinese
Abstract: 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.