Identification of phenolics and nucleoside derivatives in Gastrodia elata by HPLC-UV-MS | |
Wang, Li ; Xiao, Hongbin ; Liang, Xinmiao ; Wei, Lixin | |
刊名 | JOURNAL OF SEPARATION SCIENCE
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2007-07-01 | |
英文摘要 | An HPLC-UV-MS method for simultaneous identification of predominant phenolics and minor nucleoside derivatives in Gastrodia elata was developed, which was based on their UV and MS characteristics summarized through a series of homemade reference standard experiments. Phenolics showed characteristic UV lambda(max) at 267 nm, [M + NH4](+) base peak in positive mode and [M - H](-) base peak in negative mode while nucleosides exhibited UV lambda(max) at 255 nm, [M + H](+), [M - H + 2H(2)O](-) or [M - H + CH3COOH](-). Phenolics conjugates mainly underwent the consecutive loss of gastrodin residue (- 268 U) and the combined loss of H2O and CO2 from the citric acid unit under negative MS/MS conditions whereas nucleosides simply lost the ribose (- 132 U) under positive MS/MS conditions. According to these characteristics, a special pattern under MS/MS conditions and reported compound data for G. elata in the literature, not only 15 phenolics were identified but also 6 nucleoside derivatives were identified. Among these compounds, seven phenolics and three nucleoside derivatives have not been reported yet from G. elata.; An HPLC-UV-MS method for simultaneous identification of predominant phenolics and minor nucleoside derivatives in Gastrodia elata was developed, which was based on their UV and MS characteristics summarized through a series of homemade reference standard experiments. Phenolics showed characteristic UV lambda(max) at 267 nm, [M + NH4](+) base peak in positive mode and [M - H](-) base peak in negative mode while nucleosides exhibited UV lambda(max) at 255 nm, [M + H](+), [M - H + 2H(2)O](-) or [M - H + CH3COOH](-). Phenolics conjugates mainly underwent the consecutive loss of gastrodin residue (- 268 U) and the combined loss of H2O and CO2 from the citric acid unit under negative MS/MS conditions whereas nucleosides simply lost the ribose (- 132 U) under positive MS/MS conditions. According to these characteristics, a special pattern under MS/MS conditions and reported compound data for G. elata in the literature, not only 15 phenolics were identified but also 6 nucleoside derivatives were identified. Among these compounds, seven phenolics and three nucleoside derivatives have not been reported yet from G. elata. |
内容类型 | 期刊论文 |
源URL | [http://ir.nwipb.ac.cn/handle/363003/1262] ![]() |
专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
推荐引用方式 GB/T 7714 | Wang, Li,Xiao, Hongbin,Liang, Xinmiao,et al. Identification of phenolics and nucleoside derivatives in Gastrodia elata by HPLC-UV-MS[J]. JOURNAL OF SEPARATION SCIENCE, Wang Li, Xiao Hongbin,Liang Xinmiao,Wei Lixin.Identification of phenolics and nucleoside derivatives in Gastrodia elata by HPLC-UV-MS.JOURNAL OF SEPARATION SCIENCE,2007,30(10):1488-1495,2007. |
APA | Wang, Li,Xiao, Hongbin,Liang, Xinmiao,&Wei, Lixin.(2007).Identification of phenolics and nucleoside derivatives in Gastrodia elata by HPLC-UV-MS.JOURNAL OF SEPARATION SCIENCE. |
MLA | Wang, Li,et al."Identification of phenolics and nucleoside derivatives in Gastrodia elata by HPLC-UV-MS".JOURNAL OF SEPARATION SCIENCE (2007). |
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