基于超高效液相色谱-串联四极杆静电场轨道阱质谱法对六堡茶中化学成分进行快速鉴定

Rapid identification of the components in Liubao tea based on ultra performance liquid chromatography-tandem quadrupole electrostatic field orbital trap mass spectrometry

中文关键词:  六堡茶  快速鉴定  静电场轨道阱  高分辨质谱

英文关键词:Liubao tea  rapid identification  ultra performance liquid chromatography-tandem quadrupole electrostatic field orbital trap mass spectrometry

中文摘要:

      目的 建立超高效液相色谱-串联四极杆静电场轨道阱质谱法(ultra performance liquid chromatography-tandem quadrupole electrostatic field orbital trap mass spectrometry, UPLC-Q-Orbitrap)与多种数据解析方式对六堡茶化学成分进行快速鉴定。方法 采用Thermo Scientific Hypersil GOLD AQ (2.1 mm× 100 mm, 1.9 μm)色谱柱, 在流动相A: 0.1%甲酸-水; 流动相B: 0.1%甲酸-乙腈中进行梯度洗脱; 以电喷雾离子源搭配静电场轨道阱检测器正负离子模式对六堡茶中的化学成分进行检测。根据一级高分辨率质谱精确质荷比数据、二级高分辨率质谱碎片离子、Thermo Scientific mzCloud网络数据库、Thermo Scientific中药成分高分辨质谱数据库以及相关文献报道, 对化学成分进行鉴定。结果 对六堡茶化学成分进行快速分析, 共鉴定出36种, 包括3种氨基酸, 3种酚, 16种黄酮, 1种木质素, 4种生物碱, 1种萜, 2种香豆素, 4种有机酸, 其他2种。结论 本研究应用UPLC-Q-Orbitrap结合数据库对六堡茶进行成分分析, 可为进一步研究六堡茶的功效、风味物质基础提供了科学依据。

英文摘要:

      Objective To establish ultra performance liquid chromatography-tandem quadrupole electrostatic field orbital trap mass spectrometry (UPLC-Q-Orbitrap) and use various data analysis methods to quickly identify the chemical composition of Liubao tea. Methods A Thermo Scientific Hypersil GOLD aQ (2.1 mm×100 mm, 1.9 μm) counm was used with 0.1% formic acid-acetonitrile solution (A) and 0.1% formic acid-water solution (B) as the mobile phase in a gradient elution mode. Detection of chemical components in Liubao tea by positive and negative ion mode of electrostatic spray ion source combined with electrostatic field orbital trap detector. Based on accurate mass to charge ratio data from primary high-resolution mass spectrometry, fragment ions from secondary high-resolution mass spectrometry, Thermo Scientific mzCloud network database, Thermo Scientific high-resolution mass spectrometry database for traditional Chinese medicine components, and relevant literature reports, identify the chemical components. Results Rapid analysis was conducted on the chemical components of Liubao tea, and a total of 36 kinds of compounds were identified, included 3 kinds of amino acid compounds, 3 kinds of phenolic compounds, 16 kinds of flavonoids, 1 kinds of lignin compound, 4 kinds of alkaloids, 1 kinds of terpenoid compound, 2 kinds of coumarins, 4 kinds of organic acid compounds, and 2 kinds of other compounds. Conclusion This study apply UPLC-Q-Orbitrap database to analyze the composition of Liubao tea, which can provide scientific basis for further study on the efficacy and flavor substance basis of Liubao tea.