A rapid method for simultaneous quantification of berberine, berbamine, magnoflorine and berberrubine in mouse serum using UPLC-MS/MS

Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Xiufang LiangXianrong Lai

Abstract

Berberidis cortex, the dry bark of Berberis L., is used to treat diabetes and contains at least three bioactive components: berberine (BBR), berbamine (BBM) and magnoflorine (MGF). BBR in turn is metabolized into berberrubine (BRB). Although it is possible to quantify each of these components individually in serum, there are currently no methods for simultaneously quantifying all four. Here, we developed a specific and rapid method for simultaneously quantifying BBR, BBM, MGF and BRB in mouse serum using ultra high-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Samples were pretreated by protein precipitation, separated using an ACQUITY UPLC® BEH C18 column and detected by a triple quadrupole mass spectrometer with electrospray ionization. The compound [9,10-(OC2H3)2]-BBR (d6-BBR) was used as internal standard for BBR and BRB, boldine (BOL) for MGF and tetrandrine (TET) for BBM. The m/z transitions for precursor/product ion pairs were 336.1/320.2 for BBR, 305.2/566.3 for BBM, 342.0/297.1 for MGF, 322.1/307.2 for BRB, 342.2/294.3 for d6-BBR, 312.2/580.3 for TET and 328.1/265.2 for BOL. We validated our method in terms of selectivity, linearity and lower limit of quantification, accuracy, precision, matr...Continue Reading

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