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- W3022931257 abstract "Pyrrolizidine alkaloids (PAs) are secondary plant metabolites witch can contaminate food, especially herbs. Due to the fact that alkaloids have a strong adverse effect on human health, it is necessary to use sensitive and selective detection methods. In present study a modified method based on LC–MS/MS was developed and validated for the simultaneous determination of thirty pyrrolizidine alkaloids and their corresponding N-oxides (PANOs) in herbs samples. Sample extraction was based on ultrasound-assisted dispersive solid phase extraction and clean-up using graphene. Method validation showed that the proposed method hold good recoveries (61–128 %) for PAs/PANOs with RSD <15 %. Limits of quantification has been set at 1 μg kg−1 level for all targeted alkaloids. The optimized method yielded a small matrix effect (-20–20 %) for most PAs/PANOs. The uncertainty associated with the analytical method was not higher than 38 %. The method is operationally simple, time-saving, and can be applied to the analysis of real herb samples." @default.
- W3022931257 created "2020-05-13" @default.
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- W3022931257 date "2020-08-01" @default.
- W3022931257 modified "2023-10-14" @default.
- W3022931257 title "A novel approach for fast and simple determination pyrrolizidine alkaloids in herbs by ultrasound-assisted dispersive solid phase extraction method coupled to liquid chromatography–tandem mass spectrometry" @default.
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- W3022931257 doi "https://doi.org/10.1016/j.jpba.2020.113351" @default.
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