Direct characterization of bitter acids in a crude hop extract by liquid chromatography-atmospheric pressure chemical ionization mass spectrometry

	Direct characterization of bitter acids in a crude hop extract by liquid chromatography-atmospheric pressure chemical ionization mass spectrometry
	Zhang, XZ; Liang, XM; Xiao, HB; Xu, Q
刊名	journal of the american society for mass spectrometry
	2004-02-01
卷号	15 期号:2 页码:180-187
产权排序	1;1
英文摘要	the applicability of on-line coupling of reversed-phase high-performance liquid chromatography to atmospheric pressure ionization tandem mass spectrometry for the separation and characterization of hop acids mixture from the crude extract of humulus lupulus was investigated. the solvent system consisting of acetonitrile-aqueous formic acid was used to give proper separation of the six main hop bitter acids within 30 min. further structural information about the components was acquired by collision-induced dissociation (cid). on the basis of analyses of the fragmentation patterns of the major alpha- and beta-bitter acids respectively, identification of the minor ones was performed using selected reaction monitoring (srm) with a group of qualitatively relevant selected precursor-product ion transitions for each bitter acid in a single high performance liquid chromatography (hplc) run. using this technique, six minor hop acids, including "adprelupulone" observed for the first time in natural resources, were detected along with the six major acids. this hyphenated techniques provides potency for rapid qualitative determination of analogs and homologs in mixtures. (c) 2004 american society for mass spectrometry.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, analytical ; chemistry, physical ; spectroscopy
研究领域[WOS]	chemistry ; spectroscopy
关键词[WOS]	centrifugal partition chromatography ; preparative separation ; array detection
收录类别	SCI
原文出处	true
语种	英语
WOS记录号	WOS:000188825600006
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/81491]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, Grp Pharmaceut Chem, Dalian 116011, Peoples R China
推荐引用方式 GB/T 7714	Zhang, XZ,Liang, XM,Xiao, HB,et al. Direct characterization of bitter acids in a crude hop extract by liquid chromatography-atmospheric pressure chemical ionization mass spectrometry[J]. journal of the american society for mass spectrometry,2004,15(2):180-187.
APA	Zhang, XZ,Liang, XM,Xiao, HB,&Xu, Q.(2004).Direct characterization of bitter acids in a crude hop extract by liquid chromatography-atmospheric pressure chemical ionization mass spectrometry.journal of the american society for mass spectrometry,15(2),180-187.
MLA	Zhang, XZ,et al."Direct characterization of bitter acids in a crude hop extract by liquid chromatography-atmospheric pressure chemical ionization mass spectrometry".journal of the american society for mass spectrometry 15.2(2004):180-187.