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《The Food Industry》 2010-05
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Study on Analytical Method of 4 Diuretics in the Weight-loss Functional Foods with UPLC/MS/MS

Ma Chang-Lu1,Fu Li2,Ma Li-qing2,He Hao3,Wang Hai-bo4 1.Beijing Vocational College of Agriculture(Beijing 102442);2.Zhengzhou College of Animal Husbandry Engineering(Zhengzhou 450011);3.Suifenhe Entry-exist Inspection and Quarantine Bureau(Suifenhe 157300);4.Dongning Entry-exist Inspection and Quarantine Bureau(Dongning 157200)  
A comprehensive based on ultra performance liquid chromatography tandem mass spectrometry has been developed for the simutaneous determination of 4 diuretics(triamterene,bumetanide,indapamide,torasemide).After various weight-loss functional foods were extracted with methnal(1% acetic acid) under ultrasoniccation.Qualitative and quantitative analysis was carried out for the analyte under the MRM mode after the chromatographic separation on Waters ACQUITY UPLC HSS T3(1.8 μm,100 mm×2.1 mm) column.The limits of detection for 4 diuretics in tea,coffee,capsule and table were(0.3~7.0) mg/kg and the limits of detection for 4 diuretics in solvent was(0.3~7.0) mg/kg.The mean recoveries at the three spiked levels were 80.0%~105.1%,with the intra-day precision less than 8% and the inter-day precision less than 10%.The method is accurate,sensitive,simple,and adapts to the determination of 4 diuretics in the different weight-loss functional foods.
【CateGory Index】: TS218
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