Analysis on chemical constituents of Scutellaria barbata by HPLC-TOF/MS
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摘要: 目的 通过高效液相-飞行时间质谱(HPLC-TOF/MS)联用技术,对中药半枝莲的主要化学成分进行有效的鉴定。 方法 色谱分离采用SHISEIDO CAPCELL PAK C18柱(100 mm×3.0 mm, 3 μm),流动相分别为0.1%甲酸水溶液和乙腈,梯度洗脱,流速为0.6 ml/min;质谱定性采用飞行时间质谱,正离子模式扫描。 结果 在优化的液质联用条件下,通过飞行时间质谱鉴定出半枝莲中15个成分。 结论 通过HPLC-TOF/MS联用技术,为鉴定半枝莲中的化学成分建立起了一种快速、高效的分析方法。
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关键词:
- 半枝莲 /
- 高效液相-飞行时间质谱 /
- 化学成分
Abstract: Objective To analyze chemical constituents of Scutellaria barbata D.Don by high pressure liquid chromatography-time of flight mass spectrometry (HPLC-TOF/MS). Methods A SHISEIDO CAPCELL PAK C18 (100 mm×3.0 mm, 3 μm) was used to separate. The mobile phase consisted of water containing 0.1% methane acid and acetonitrile was used as gradient elute. The flow rate was 0.6 ml/min. TOF/MS was applied for qualitative analysis under positive ion mode. Results Under optimized condition, 15 major constituents in Scutellaria barbata D.Don were identified by time of flight mass spectrometry and structure-relevant fragment ions. Conclusion A simple and reliable method using HPLC-TOF/MS was established to identify the chemical constituents of Scutellaria barbata D.Don.-
Key words:
- Scutellaria barbata D.Don /
- HPLC-TOF/MS /
- chemical constituents
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