Sampling-rate calibration vs. equilibrium calibration for in vivo solid-phase microextraction: Analysis of neonicotinoids in bananas

文献类型： 外文期刊

第一作者： Zheng, Meijie

作者： Zheng, Meijie;Zheng, Tengfei;Li, Xiujuan;Li, Xiujuan;Zheng, Meijie;Zheng, Tengfei;Li, Xiujuan;Zheng, Meijie;Zheng, Tengfei;Huan, Zhibo;Li, Chunli;Wang, Mingyue

作者机构：

关键词： Neonicotinoid; In vivo solid-phase microextraction; Sampling-rate calibration; Equilibrium calibration; Ultra-performance liquid chromatography; tandem mass spectrometry

期刊名称：JOURNAL OF CHROMATOGRAPHY A （ 影响因子：3.8； 五年影响因子：3.5 ）

ISSN： 0021-9673

年卷期： 2024 年 1730 卷

页码：

收录情况： SCI

摘要： In vivo solid-phase microextraction ( in vivo SPME) is an emerging fascinating sample pretreatment technique, but its quantitative correction method is different from the traditional correction methods, which has become a bottleneck limiting its development. At present, the sampling-rate calibration and equilibrium calibration are mainly used, however, their characteristics and applicability are not clear. In this study, the sampling-rate calibration and equilibrium calibration were evaluated in the case of the determination of neonicotinoids in bananas by in vivo SPME. The factors that affect the sampling rate ( R s ), such as the matrix states, sampling durations, and individual differences were studied, and they all had impacts on R s . Conversely, the equilibrium distribution coefficient ( K fs ) remained constant after extraction equilibrium and the individual differences were smaller. The highest accuracy and precision were achieved by equilibrium calibration, and the relative recoveries were in the range of 83.2 %-104.3 % with the relative standard deviations below 8.1 % compared to a standard QuEChERS-based method. The lower limits of quantification for 4 neonicotinoids in bananas were below 5 ng g(-1) work clarifies the characteristics, rules and performance of the sampling-rate calibration and equilibrium calibration, which is of crucial importance for the development and application of in vivo SPME. The developed method is convenient, sensitive, and accurate for the determination of pesticide residues, which is of great significance to guide the safe use of pesticides in the field and prevent products with excessive pesticide residues from entering the market. , lower than the standard method and the maximum residue levels in China and the European Union. This

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