查詢結果分析
相關文獻
- Structure Identification of Aporphine Alkaloids by On-line Coupling of HPLC-NMR with Loop Storage
- HPLC分析法在中草藥質量鑑定及其方法建立之進行模式
- 川芎 於大白鼠腦部各區之濃度分佈研究
- 茶葉及咖啡中咖啡因之含量分析
- 中藥方劑之品質管制(4)
- 固態光譜法解析乙醯化雲杉之反應特性
- Determination of Benzoximate and Allethrin Residues in Crops
- High Performance Liquid Chromatographic Determination of Anthocyanin Pigments in Some Varieties of Black Rice
- Analytical Methods for the Determination of Acifluorfen and Bentazone Residues in Crops
- 市售柚類果實、果汁、及柚糖中柚皮苷之含量分析
頁籤選單縮合
題名 | Structure Identification of Aporphine Alkaloids by On-line Coupling of HPLC-NMR with Loop Storage |
---|---|
作者 | Tseng,Li-hong; Braumann,Ulrich; Godejohann,Markus; Lee,Shoei-sheng; Albert,Klaus; | 書刊名 | Journal of the Chinese Chemical Society |
卷期 | 47:6 2000.12[民89.12] |
頁次 | 頁1231-1236 |
分類號 | 343.38 |
關鍵詞 | 高效液相層析; 核磁共振光譜; High performance liquid chromatography; HPLC; Nuclear magnetic resonance spectroscopy; NMR spectroscopy; HPLC-NMR coupling; HPLC-MS coupling; |
語文 | 英文(English) |
英文摘要 | The potential of coupling HPLC separation methodology to on-line high resolution nuclear magnetic resonance (NMR) spectroscopy has been demonstrated with a mixture of nine aporphine alkaloids. A loop storage procedure after separation has facilitated the identification of closely eluted peaks (�� = k2/k1 = 1.01 and �扉 = 0.37 min = 367 μL). These were collected off-line and identified by a 1D 1H NMR spectrum. For this purpose an automated procedure has been implemented which includes the use of shaped pulses, multiple solvents suppression and 13C satellite suppression of acetonitrile. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。