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dc.contributor.authorXiang, Ping
dc.contributor.authorLin, Yiming
dc.contributor.author林益明
dc.contributor.authorLin, Peng
dc.contributor.author林鹏
dc.contributor.authorXiang, Cheng
dc.contributor.authorYang, Zhiwei
dc.contributor.author杨志伟
dc.contributor.authorLu, Zhongmin(Univ Miami, Dept Biol, Coral Gables, FL 33124 USA)
dc.date.accessioned2011-08-24T06:18:39Z
dc.date.available2011-08-24T06:18:39Z
dc.date.issued2007
dc.identifier.citationJOURNAL OF APPLIED POLYMER SCIENCE,Vol 105 Issue 2,pp859-864zh_CN
dc.identifier.issn0021-8995
dc.identifier.urihttp://dx.doi.org/doi:10.1002/app.26373
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/10585
dc.description.abstractIn this study, Chinese gallotannins were characterized by MALDI-TOF MS, and effects of cationization reagents on the quality of spectra were investigated. The trideca- and tetradeca-galloyl glucoses were observed in Chinese gallotannins, which could not be detected in earlier studies. When Cs+ was used as the cationization reagent, Chinese gallotannins gave a relatively simple MALDI-TOF spectrum, three series of quasimolecular ions [M + Cs](+), [M + 2Cs-H](+), and [M + 3Cs-2H](+) and a series of metastable ion peaks with minimum abundance were detected. Selection of Na+ as the cationization reagent, additional three series of ion peaks including two patterns from the fragmentation and complex 2M adducts [2M + Na](+) can be distinguished. In the case of no deionization or addition of cationization reagent to the analyte/ matrix, naturally abundant Na+ and K+ as the cationization reagent, [M + Na](+) and [M + K](+) molecular ions both appeared in the complicated spectrum. Therefore, we conclude that cationization reagents affect the MALDI-TOF MS spectrum of Chinese gallotannins significantly. (c) 2007 Wiley Periodicals, fnc.zh_CN
dc.language.isoenzh_CN
dc.publisherJOHN WILEY & SONS INCzh_CN
dc.subjectcationization reagentszh_CN
dc.subjectChinese gallotanninszh_CN
dc.subjecthydrolyzable tanninszh_CN
dc.subjectMALDI-TOF MSzh_CN
dc.titleEffect of cationization reagents on the matrix-assisted laser desorption/ionization time-of-flight mass spectrum of Chinese gallotanninszh_CN
dc.typeArticlezh_CN


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