Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes · 2017
Photostability study of cis-configuration neonicotinoid insecticide cycloxaprid in water.
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Hou Shuang, Zhuang Yingying, Deng Yayun, Xu Xiaoyong
Аннотация
Cycloxaprid (CYC) is a new cis-configuration neonicotinoid insecticide, which is currently under development in China for agricultural pest control. Considering the photodegradation of CYC is important for the application of CYC in the future, the photochemical behavior of CYC in aqueous solution was herein investigated in a "merry-go-round" reactor under a 300 W high-pressure mercury lamp. Twenty-five photodegradation products were identified via UPLC-TOF-ESI-MS/MS. The results suggested that NTN32692, the precursor of CYC was the predominant photodegradation product. CYC photodegrades via a more complex mechanism than imidacloprid and four potential photodegradation pathways were proposed.