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Article

Determination of Glufosinate-P-Ammonium in Soil Using Precolumn Derivation and Reversed-Phase High-Performance Liquid Chromatography

1
Nanjing Institute of Environmental Science, Ministry of Ecology and Environment of the People’s Republic of China, Nanjing 210042, China
2
Key Laboratory of Pesticide Environment Assessment and Pollution Control, Ministry of Ecology and Environment of the People’s Republic of China, Nanjing 210042, China
3
College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
4
Beijing Origin Water Technology Co., Ltd., Beijing 100097, China
5
Jiangsu Institute of Metrology, Nanjing 210023, China
*
Author to whom correspondence should be addressed.
Academic Editor: Maurizio Barbieri
Water 2022, 14(11), 1816; https://doi.org/10.3390/w14111816
Received: 30 March 2022 / Revised: 26 May 2022 / Accepted: 29 May 2022 / Published: 6 June 2022
This study developed an analytical method to quantify glufosinate-P-ammonium (GLUF-P) in farmland soil using a reversed-phase high-performance liquid chromatography (HPLC) system with a fluorescence detector after derivatization. GLUF-P in farmland soil was extracted with a mixed alkaline solution and was further derivatized with 9-fluorenyl methyl chloroformate (FMOC) at 25 °C for 1 h. The derivatives were separated with an ACE-C18 column, gradient eluted with a mobile phase A of acetonitrile and a mobile phase B of 0.2% phosphoric acid solution, and finally determined by high-performance liquid chromatography (HPLC) with fluorescence detection at an excitation wavelength of 254 nm and an emission wavelength of 279.8 nm. The limits of detection (LODs) in the four types of soil ranged from 0.004 to 0.015 mg/kg, and the limits of quantification (LOQs) ranged from 0.0125 to 0.05 mg/kg. The mean recoveries of GLUF-P ranged from 94% to 119.8%, and the relative standard deviations (RSDs) varied between 2.8% and 9.0% when the spiked concentrations of GLUF-P were 0.1 mg/kg and 1.0 mg/kg, respectively. The coefficients of regression for the linearity equation were more than 0.99. The proposed method had high sensitivity and could be used for the determination of GLUF-P residues in farmland soil. View Full-Text
Keywords: GLUF-P; farmland soil; derivatization; HPLC; fluorescence detection GLUF-P; farmland soil; derivatization; HPLC; fluorescence detection
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MDPI and ACS Style

Chen, L.; Kong, S.; Wang, G.; Yan, X.; Zhang, X.; Kong, X.; Bu, Y. Determination of Glufosinate-P-Ammonium in Soil Using Precolumn Derivation and Reversed-Phase High-Performance Liquid Chromatography. Water 2022, 14, 1816. https://doi.org/10.3390/w14111816

AMA Style

Chen L, Kong S, Wang G, Yan X, Zhang X, Kong X, Bu Y. Determination of Glufosinate-P-Ammonium in Soil Using Precolumn Derivation and Reversed-Phase High-Performance Liquid Chromatography. Water. 2022; 14(11):1816. https://doi.org/10.3390/w14111816

Chicago/Turabian Style

Chen, Lin, Shun Kong, Guodong Wang, Xiaoju Yan, Xuemei Zhang, Xiangji Kong, and Yuanqing Bu. 2022. "Determination of Glufosinate-P-Ammonium in Soil Using Precolumn Derivation and Reversed-Phase High-Performance Liquid Chromatography" Water 14, no. 11: 1816. https://doi.org/10.3390/w14111816

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