Determination of Four Cholinomimetics in Edible Fungi and Areca Nut Using Ultra-High Performance Liquid Chromatography Combined With Quadrupole/Time-of-Flight Mass Spectrometry
Junmei Ma, Qiang Li, Yonghuan Yan, Lei Sun, Pin Lv, Yan Zhang
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引用次数: 0
Abstract
Background: Cholinomimetic compounds are a class of organic compounds found in natural plants that have significant biological activity as well as toxicity, and their dosage must be controlled, with side effects occurring in case of accidental ingestion or excessive intake. Accurate determination of four cholinomimetic compounds in edible fungi and areca nut can provide technical support to the relevant monitoring organizations, which is conducive to the protection of consumer health. In this study, we have established a workflow for the rapid screening and confirmation of four cholinomimetics in edible fungi and areca nut by using the QuEChERS pretreatment method and ultra-high performance liquid chromatography coupled with quadrupole/time-of-flight mass spectrometry (UPLC-Q-TOF/MS) for the first time.
Methods: The samples were extracted with acetonitrile, and separation was achieved on a HILIC column (2.1 mm × 100 mm, 1.6 μm) with acetonitrile and 20 mM ammonium formate aqueous solution as mobile phase with gradient elution. UPLC-Triple TOF™6600+ was used to collect the data of the target analytes in the mode of TOF-MS-IDA-MS/MS, and the data were analyzed by SCIEX OS software to realize the qualitative screening and confirmation of samples.
Results: The mass accuracy error of 4 cholinomimetics was lower than 5.0 × 10−6. All four cholinomimetic compounds had good linearity in a certain range, and the correlation coefficient (R2) was higher than 0.998. The limits of detection and limits of quantification of the method were 2.5–25.0 μg/kg and 5.0–50.0 μg/kg, respectively. The recoveries were between 81.0% and 99.1% at spiked level 5.0–500.0 μg/kg, with the relative standard deviation of 0.41%–4.00%.
Conclusion: The method is sensitive, accurate, and suitable for rapid screening and confirmation of 4 cholinomimetics in edible fungi and areca nut.
期刊介绍:
Journal of Food Quality is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles related to all aspects of food quality characteristics acceptable to consumers. The journal aims to provide a valuable resource for food scientists, nutritionists, food producers, the public health sector, and governmental and non-governmental agencies with an interest in food quality.