Separation and characterization of bufadienolides in toad skin using two-dimensional normal-phase liquid chromatography x reversed-phase liquid chromatography coupled with mass spectrometry

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	Separation and characterization of bufadienolides in toad skin using two-dimensional normal-phase liquid chromatography x reversed-phase liquid chromatography coupled with mass spectrometry
	Zhang, Yun ; Jin, Hongli ; Li, Xiaolong ; Zhao, Jianqiang ; Guo, Xiujie ; Wang, Jixia ; Guo, Zhimou ; Zhang, Xiuli ; Tao, Yanduo ; Liu, Yanfang ; Chen, Deliang ; Liang, Xinmiao
	2016-07-15
发表期刊	JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
摘要	Bufadienolides possess various bioactivities especially antitumor. Due to the high structural diversity, the separation of bufadienolides often suffers from coelution problem on conventional RP columns. In this work, an off-line two-dimensional normal-phase liquid chromatography x reversed-phase liquid chromatography (2D-NPLC x RPLC) method was developed to separate and characterize bufadienolides in toad skin. Several RP and NP columns were evaluated with five reference bufadienlides. The XUnion C18 and XAmide columns exhibited superior chromatographic performances for bufadienlide separation, and were selected in RPLC and NPLC, respectively. RPLC was used in the second-dimension for the good compatibility with MS, while NPLC was adopted in the first-dimension. The orthogonality of the 2D-NPLC x RPLC system was investigated by the geometric approach using fifteen bufadienolide mixtures. The result was 49.6%, demonstrating reasonable orthogonality of this 2D-LC system. By combining the 2D-LC system with MS, 64 bufadienlides including 33 minor ones and 11 pairs of isomers in toad skin were identified. This off-line 2D-NPLC x RPLC allowed to solve the coelution problem of bufadienlides in one-dimension RPLC, and thus facilitated the identification significantly. (C) 2015 Elsevier B.V. All rights reserved.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/32926
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Zhang, Yun,Jin, Hongli,Li, Xiaolong,et al. Separation and characterization of bufadienolides in toad skin using two-dimensional normal-phase liquid chromatography x reversed-phase liquid chromatography coupled with mass spectrometry[J]. JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES,2016.
APA	Zhang, Yun.,Jin, Hongli.,Li, Xiaolong.,Zhao, Jianqiang.,Guo, Xiujie.,...&Liang, Xinmiao.(2016).Separation and characterization of bufadienolides in toad skin using two-dimensional normal-phase liquid chromatography x reversed-phase liquid chromatography coupled with mass spectrometry.JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES.
MLA	Zhang, Yun,et al."Separation and characterization of bufadienolides in toad skin using two-dimensional normal-phase liquid chromatography x reversed-phase liquid chromatography coupled with mass spectrometry".JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES (2016).