Volume 7, Issue 4, August 2019, Page: 72-76
Method for Residues Analysis of Isoxaflutole and Its Metabolites in Maize
Mao Jia, Institute of Agriculture Environment and Resource, Yunnan Academy of Agricultural Sciences, Kunming, China
Feng Yizhi, Key Laboratory for Chemical Pesticide of Shandong Province, Shandong Academy of Pesticide Sciences, Jinan, China
Qi Xiaoxue, Key Laboratory for Chemical Pesticide of Shandong Province, Shandong Academy of Pesticide Sciences, Jinan, China
Han Jifeng, Key Laboratory for Chemical Pesticide of Shandong Province, Shandong Academy of Pesticide Sciences, Jinan, China
Pan Jinju, Key Laboratory for Chemical Pesticide of Shandong Province, Shandong Academy of Pesticide Sciences, Jinan, China
Liang Lin, Key Laboratory for Chemical Pesticide of Shandong Province, Shandong Academy of Pesticide Sciences, Jinan, China
Liu Wei, Key Laboratory for Chemical Pesticide of Shandong Province, Shandong Academy of Pesticide Sciences, Jinan, China
Zuo Bojun, Key Laboratory for Chemical Pesticide of Shandong Province, Shandong Academy of Pesticide Sciences, Jinan, China
Received: Sep. 11, 2019;       Accepted: Oct. 7, 2019;       Published: Oct. 17, 2019
DOI: 10.11648/j.sjc.20190704.11      View  70      Downloads  23
Abstract
A rapid and sensitive analytical method for the determination of isoxaflutole and diketonitrile (DKN) residues in maize was established based on QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) and high performance liquid chromatography with tandem mass spectrometry (HPLC-MS/MS). The samples were extracted with acetonitrile and purified with octadecylsilane (C18). The mass spectrometer was performed in multi-reaction monitoring mode, and electrospray ionization in negative mode was selected. The isoxaflutole and DKN residues were quantified by the external standard method using the matched standard solution to compensate for matrix effect. The results indicated that the calibration curves of isoxaflutole and DKN were linear in the range of 0.005-0.5mg/L with correlation coefficients of more than 0.9922. When the addition level ranged from 0.01 to 0.1mg/kg the average recoveries of isoxaflutole and DKN in maize, green maize and straw were 95%-108%, and the relative standard deviation (RSD) ranged from 2% to 11%. The limit of quantitation (LOQ) were 0.01 mg/kg in different matrices. This method has many characteristics, such as simple, rapid and accurate, and can be adapted for the confirmation of isoxaflutole and DKN residues in maize samples.
Keywords
Isoxaflutole, Metabolites, Maize, Method, Residues
To cite this article
Mao Jia, Feng Yizhi, Qi Xiaoxue, Han Jifeng, Pan Jinju, Liang Lin, Liu Wei, Zuo Bojun, Method for Residues Analysis of Isoxaflutole and Its Metabolites in Maize, Science Journal of Chemistry. Vol. 7, No. 4, 2019, pp. 72-76. doi: 10.11648/j.sjc.20190704.11
Copyright
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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