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- W2348888963 abstract "Objective:To establish a quantitative method for the determination of trace ricinine in edible vegetable oil by high-performance liquid chromatography coupled with ultraviolet and tandem mass spectrometry(HPLC-UV-MS/MS).Methods:After the sample was extracted by ethanol,dissolved by hot water,defatted by n-hexane,cleaned and enriched by Waters OasisHLB solid-phase extraction(SPE) cartridge,it was separated on an Extend C18 column(250 mm×4.6 mm i.d.,5 μm)by using the mobile phase consisting of H2O+CH3OH(65+35,v/v).Detection was carried out by HPLC-UV and HPLC-MS/MS using the wavelength of ultraviolet detector at 219 nm and a positive electrospray ionization interface in the multiple reaction monitoring(MRM) mode with the transition for quantitative analysis of m/z 165→138.Results:For the ultraviolet method,calibration curve was linear within the range of 50.0~10000.0 μg/kg,the limit of quantification was 50.0 μg/kg,the extraction recovery was 92.7%~97.8%,and the inter-day RSDs were less than 5.4%.For the MS/MS method,calibration curve was linear within the range of 0.5~50.0 μg/kg,the limit of quantification was 0.5 μg/kg,the extraction recovery was 90.0%~96.5%,and the inter-day RSDs were less than 10.5%.Conclusion:This method is simple,sensitive,accurate and of good specificity for the satisfactory quantitative determination of trace ricinine residue in edible vegetable oil." @default.
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- W2348888963 date "2009-01-01" @default.
- W2348888963 modified "2023-09-23" @default.
- W2348888963 title "Quantitative determination of trace ricinine in edible vegetable oil by high-performance liquid chromatography coupled with ultraviolet and tandem mass spectrometry" @default.
- W2348888963 hasPublicationYear "2009" @default.
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