Degradation of the Neonicotinoid Pesticides in the Atmospheric Pressure Ionization Source
文献类型: 外文期刊
第一作者: Chai, Yunfeng
作者: Chai, Yunfeng;Chen, Hongping;Liu, Xin;Lu, Chengyin;Chai, Yunfeng;Chen, Hongping;Liu, Xin;Lu, Chengyin;Chai, Yunfeng;Chen, Hongping;Liu, Xin;Lu, Chengyin
作者机构:
关键词: Neonicotinoid pesticide;Degradation;Atmospheric pressure ionization;In-source ion/molecule reaction
期刊名称:JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY ( 影响因子:3.109; 五年影响因子:3.323 )
ISSN: 1044-0305
年卷期: 2018 年 29 卷 2 期
页码:
收录情况: SCI
摘要: During the analysis of neonicotinoid pesticide standards (thiamethoxam, clothianidin, imidacloprid, acetamiprid, and thiacloprid) by mass spectrometry, the degradation of these pesticides (M-C=N-R is degraded into M-C=O, M is the skeleton moiety, and R is NO2 or CN) was observed in the atmospheric pressure ionization interfaces (ESI and APCI). In APCI, the degradation of all the five neonicotinoid pesticides studied took place, and the primary mechanism was in-source ion/molecule reaction, in which a molecule of water (confirmed by use of H-2 O-18) attacked the carbon of the imine group accompanying with loss of NH2R (R=NO2, CN). For the nitroguanidine neonicotinoid pesticides (R=NO2, including thiamethoxam, clothianidin, and imidacloprid), higher auxiliary gas heater temperature also contributed to their degradation in APCI due to in-source pyrolysis. The degradation of the five neonicotinoid pesticides studied in ESI was not significant. In ESI, only the nitroguanidine neonicotinoid pesticides could generate the degradation products through in-source fragmentation mechanism. The degradation of cyanoamidine neonicotinoid pesticides (R=CN, including acetamiprid and thiacloprid) in ESI was not observed. The degradation of neonicotinoid pesticides in the ion source of mass spectrometer renders some adverse consequences, such as difficulty interpreting the full-scan mass spectrum, reducing the sensitivity and accuracy of quantitative analysis, and misleading whether these pesticides have degraded in the real samples. Therefore, a clear understanding of these unusual degradation reactions should facilitate the analysis of neonicotinoid pesticides by atmospheric pressure ionization mass spectrometry.
分类号:
- 相关文献
作者其他论文 更多>>
-
Metabolomics and ionomics reveal the quality differences among peach, acacia and karaya gums
作者:Zhang, Kaiwei;Yu, Xiangyang;Zhang, Kaiwei;Chen, Meng;Zhang, Xue;Chen, Jian;Chen, Xiaolong;Li, Yong;Yu, Xiangyang;Zhang, Kaiwei;Chen, Meng;Zhang, Xue;Chen, Jian;Chen, Xiaolong;Li, Yong;Yu, Xiangyang;Liu, Xin
关键词:Gum; Metabolomics; Flavonoids; Total phenols content; Metabolites
-
Ustiloxin A impairs oocyte quality by disrupting organelles function
作者:Han, Jun;Wang, Gang;Liu, Xin;Zhou, You;Hu, Junqiang;Shi, Jianrong;Xu, Jianhong;Wu, Yuzhuo;Shi, Jianrong;Xu, Jianhong;Wang, Weikang
关键词:UA; Oocyte maturation; Mitochondria; Oxidative stress; Autophagy
-
Single-cell transcriptome atlas of lamprey exploring Natterin- induced white adipose tissue browning
作者:Pang, Yue;Du, Zeyu;Zhang, Jin;Lu, Jiali;Li, Jun;Dong, Xinrui;Zhao, Zhisheng;Chuan, Shunqin;Sun, Mingjie;Li, Qingwei;Pang, Yue;Du, Zeyu;Zhang, Jin;Lu, Jiali;Li, Jun;Dong, Xinrui;Zhao, Zhisheng;Chuan, Shunqin;Sun, Mingjie;Li, Qingwei;Qin, Yating;Liu, Qun;Han, Kai;Yuan, Zengbao;Pan, Shanshan;Xu, Mengyang;Wang, Dantong;Li, Zhen;Chen, Yadong;Song, Yue;Zhan, Liping;Cui, Wei;Wang, Jun;Fan, Guangyi;Qin, Yating;Liu, Qun;Han, Kai;Fan, Guangyi;Qin, Yating;Liu, Qun;Han, Kai;Song, Yue;Qin, Yating;Fan, Guangyi;Yuan, Zengbao;Xu, Mengyang;Wang, Dantong;Gu, Ying;Yang, Huanming;Xu, Xun;Liu, Xin;Fan, Guangyi;Xu, Mengyang;Fan, Guangyi;Li, Shuo;Zhang, Zhe;Ni, Ming;Jia, Xiaodong;Xia, Zhangyong;Yue, Zhen;Fan, Guangyi;Gu, Ying;Yang, Huanming;Xu, Xun;Liu, Xin
关键词:
-
PbMADS49 Regulates Lignification During Stone Cell Development in 'Dangshansuli' (Pyrus bretschneideri) Fruit
作者:Meng, Dandan;Liu, Xin;Cai, Yongping;Meng, Dandan;Duan, Jinsheng;Meng, Dandan;Duan, Jinsheng;Cao, Yunpeng
关键词:pear; stone cell development; lignin biosynthesis; PbMADS49; PbPRX33
-
Molecular mechanism of potently neutralizing human monoclonal antibodies against severe fever with thrombocytopenia virus infection
作者:Quan, Chuansong;Nie, Kaixiao;Zheng, Wenjun;Wang, Yiwen;Quan, Chuansong;Zhang, Hong;Quan, Chuansong;Ma, Dezhen;Su, Chao;Li, Lianfeng;Peng, Dingkun;Yin, Chunhong;Yang, Peipei;Shan, Chao;Liu, Xin;Zheng, Jie;Shi, Weifeng;Li, Weiwei;Gao, George F.;Qi, Jianxun;Liu, Weixiao;Liu, Di;Carr, Michael J.;Carr, Michael J.;Shi, Weifeng
关键词:severe fever with thrombocytopenia syndrome; SFTSV; Bandavirus dabieense; monoclonal antibodies; neutralization; therapeutics
-
A Novel Approach for Maize Straw Type Recognition Based on UAV Imagery Integrating Height, Shape, and Spectral Information
作者:Liu, Xin;Gong, Huili;Guo, Lin;Zhou, Jingping;Gong, Huili;Guo, Lin;Gong, Huili;Guo, Lin;Gong, Huili;Guo, Lin;Gong, Huili;Guo, Lin;Gu, Xiaohe;Zhou, Jingping
关键词:maize straw type; multispectral imagery; SESI; object-oriented classification; UAV
-
Host-Adaptive Divergence Shapes the Genetic Architecture of Magnaporthe oryzae in Southern China's Rice Agroecosystems
作者:Liu, Xin;Fu, Jun;Deng, Zhao;Chen, Xinwei;Hu, Xiaochun;Tu, Zhouyi;Wang, Qiuyi;Zhu, Yuxuan;Chen, Pengcheng;Bai, Zhenan;Liu, Tiangang;Zhang, Xuanwen;Qin, Peng;Wang, Kai;Jiang, Nan;Yang, Yuanzhu;Liu, Xin;Fu, Jun;Deng, Zhao;Chen, Xinwei;Hu, Xiaochun;Tu, Zhouyi;Wang, Qiuyi;Zhu, Yuxuan;Chen, Pengcheng;Bai, Zhenan;Liu, Tiangang;Zhang, Xuanwen;Qin, Peng;Wang, Kai;Jiang, Nan;Yang, Yuanzhu;Liu, Xin;Fu, Jun;Deng, Zhao;Hu, Xiaochun;Tu, Zhouyi;Wang, Qiuyi;Chen, Pengcheng;Bai, Zhenan;Liu, Tiangang;Zhang, Xuanwen;Qin, Peng;Wang, Kai;Jiang, Nan;Yang, Yuanzhu;Liu, Xin;Fu, Jun;Deng, Zhao;Hu, Xiaochun;Tu, Zhouyi;Chen, Pengcheng;Bai, Zhenan;Liu, Tiangang;Zhang, Xuanwen;Qin, Peng;Wang, Kai;Jiang, Nan;Yang, Yuanzhu;Chen, Xinwei;Zhu, Yuxuan;Wang, Kai;Yang, Yuanzhu;Wang, Qiuyi;Qin, Peng;Wang, Kai;Jiang, Nan;Yang, Yuanzhu
关键词:
Magnaporthe oryzae ; rice blast; SNP; genetic diversity; population structure; mating type