+ )in MS and dimerized easily in alcohol solution.which did not dimerize in acidity solution.Collision induced dissociation(S-CID)made these alkaloids easily lose a molecule of H2O.The MS spectra of the extracts of fiveBulbus Fritillariae species indicated that the major molecular ions were similar to each other,but different varieties showed very different relative abundances of these molecular ions.Conclusion The total alkaloid extracts of fiveBulbus Fritillariaespecies have strong characteristic ESI-MS spectra and these spectra are of good reproducibility and precision,respectively.These characteristic spectra are useful for the identification ofBulbus Fritillariaespecies."/>

醉酒后少妇被疯狂内射视频,一本色道久久综合一,在线天堂新版资源www在线下载,中文字幕乱人伦高清视频,中字幕视频在线永久在线观看免费

首頁 > 過刊瀏覽>2005年第卷第7期 >2005(7):1069-1071
上一篇 | 下一篇

5種貝母藥材的電噴霧離子阱質(zhì)譜特征圖譜研究

ESI-MS characteristic spectra of alkaloids inBulbus Fritillariae

發(fā)布日期:2015-01-07
您是第位訪問者
中草藥 ® 2025 版權(quán)所有
技術(shù)支持:北京勤云科技發(fā)展有限公司
津備案:津ICP備13000267號 互聯(lián)網(wǎng)藥品信息服務(wù)資格證書編號:(津)-非經(jīng)營性-2015-0031