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Article: Tissue-spray ionization mass spectrometry for raw herb analysis

TitleTissue-spray ionization mass spectrometry for raw herb analysis
Authors
Issue Date2011
PublisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www.interscience.wiley.com/jpages/0951-4198/
Citation
Rapid Communications In Mass Spectrometry, 2011, v. 25 n. 19, p. 2837-2843 How to Cite?
AbstractTissue-spray ionization mass spectrometry is developed for the in situ chemical analysis of raw herbs under ambient conditions. We demonstrated that analyte molecules could be directly sprayed and ionized from solvent-wetted ginseng tissues upon the application of high electrical voltage to the tissue sample. Abundant phytochemicals/metabolites, including ginsenosides, amino acids and oligosaccharides, could be detected from ginseng tissues when the tissue-spray experiments were conducted in positive ion mode. Thermally labile and easily hydrolyzed malonyl-ginsenosides were also detected in negative ion mode. The tissue-spray ionization method enables the direct detection of analytes from raw herb samples and preserves the sample integrity for subsequent morphological and/or microscopic examination. In addition, this method is simple and fast for chemical profiling of wild-type and cultivatedtype American ginsengs with differentiation. Copyright © 2011 John Wiley & Sons, Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/152639
ISSN
2015 Impact Factor: 2.226
2015 SCImago Journal Rankings: 0.819
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChan, SLFen_HK
dc.contributor.authorWong, MYMen_HK
dc.contributor.authorTang, HWen_HK
dc.contributor.authorChe, CMen_HK
dc.contributor.authorNg, KMen_HK
dc.date.accessioned2012-07-16T09:44:48Z-
dc.date.available2012-07-16T09:44:48Z-
dc.date.issued2011en_HK
dc.identifier.citationRapid Communications In Mass Spectrometry, 2011, v. 25 n. 19, p. 2837-2843en_HK
dc.identifier.issn0951-4198en_HK
dc.identifier.urihttp://hdl.handle.net/10722/152639-
dc.description.abstractTissue-spray ionization mass spectrometry is developed for the in situ chemical analysis of raw herbs under ambient conditions. We demonstrated that analyte molecules could be directly sprayed and ionized from solvent-wetted ginseng tissues upon the application of high electrical voltage to the tissue sample. Abundant phytochemicals/metabolites, including ginsenosides, amino acids and oligosaccharides, could be detected from ginseng tissues when the tissue-spray experiments were conducted in positive ion mode. Thermally labile and easily hydrolyzed malonyl-ginsenosides were also detected in negative ion mode. The tissue-spray ionization method enables the direct detection of analytes from raw herb samples and preserves the sample integrity for subsequent morphological and/or microscopic examination. In addition, this method is simple and fast for chemical profiling of wild-type and cultivatedtype American ginsengs with differentiation. Copyright © 2011 John Wiley & Sons, Ltd.en_HK
dc.languageengen_US
dc.publisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www.interscience.wiley.com/jpages/0951-4198/en_HK
dc.relation.ispartofRapid Communications in Mass Spectrometryen_HK
dc.titleTissue-spray ionization mass spectrometry for raw herb analysisen_HK
dc.typeArticleen_HK
dc.identifier.emailChe, CM:cmche@hku.hken_HK
dc.identifier.emailNg, KM:kwanmng@hku.hken_HK
dc.identifier.authorityChe, CM=rp00670en_HK
dc.identifier.authorityNg, KM=rp00766en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/rcm.5177en_HK
dc.identifier.pmid21913262-
dc.identifier.scopuseid_2-s2.0-80052558218en_HK
dc.identifier.hkuros201257en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80052558218&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume25en_HK
dc.identifier.issue19en_HK
dc.identifier.spage2837en_HK
dc.identifier.epage2843en_HK
dc.identifier.isiWOS:000295369100021-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridChan, SLF=27167455400en_HK
dc.identifier.scopusauthoridWong, MYM=37076134600en_HK
dc.identifier.scopusauthoridTang, HW=16231745000en_HK
dc.identifier.scopusauthoridChe, CM=7102442791en_HK
dc.identifier.scopusauthoridNg, KM=26026091100en_HK

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