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A rapid and sensitive liquid chromatography–tandem mass spectrometry (LC–MS/MS) method for the determination of TBI-166 in rat plasma was developed and validated. Propranolol was used as the internal standard (IS). Plasma samples containing TBI-166 and IS were prepared based on a simple protein precipitation by the addition of ten volumes of acetonitrile. Thermo Scientific TSQ Quantum triple quadrupole...
The rhizomes or roots of Dysosma versipellis (Hance) M. Cheng, Dysosma pleiantha (Hance) Woodson, and Sinopodophyllum emodi (Wall. Ex Royle) Ying under the same name “Gui-jiu”, were widely used for medicinal purposes. Valid quality control of Gui-jiu is desirable due to the fact that they are highly toxic. In the present paper, an accurate fingerprint method was developed to identify the three species...
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