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Determination of five sulfonylurea herbicides in environmental waters and soil by ultra high performance liquid chromatography with tandem mass spectrometry after extraction using graphene
Author(s) -
Li Cheng,
Lu Anxiang,
Wang Jihua,
Li Jie,
Ping Hua,
Luan Yunxia,
Chen Jiayi,
Ha Xuejiao
Publication year - 2014
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201400797
Subject(s) - chromatography , extraction (chemistry) , detection limit , solid phase extraction , chemistry , sorbent , mass spectrometry , soil test , calibration curve , tandem mass spectrometry , matrix (chemical analysis) , sulfonylurea , liquid chromatography–mass spectrometry , soil water , analytical chemistry (journal) , environmental science , organic chemistry , adsorption , soil science , medicine , insulin , endocrinology
A fast and novel analytical method was developed for the determination of trace levels of sulfonylurea herbicides in water and soil samples. Graphene was used as a sorbent for extraction, and ultra high performance liquid chromatography with tandem mass spectrometry was used for quantification. Five sulfonylurea herbicides were preconcentrated from water samples using a graphene‐loaded packed cartridge, while extraction from soil samples was performed in a single step using graphene‐supported matrix solid‐phase dispersion. Under the optimized conditions, the calibration plots were linear in the range between 5 and 1000 ng/L for water samples, and between 1 and 200 ng/g for soil samples. All correlation coefficients ( R ) were >0.99. The limits of detection for water and soil samples were 0.28–0.53 ng/L and 0.08–0.26 ng/g, respectively. This method was successfully applied to the analysis of spiked samples of environmental water and soil, with recoveries ranging from 84.2–109.3 and 86.12–103.2%, respectively, all with relative standard deviations of <10%.