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山东中医药大学 药学院,实验中心, 济南 250355
亢倩丽,在读硕士,从事中药及复方活性成分与质量控制研究,Tel:0531-89628192,E-mail:1391824910@qq.com
巩丽丽,博士,副教授,从事中药质量控制与仪器分析研究,Tel:0531-89628192,E-mail:gonglily@163.com
网络出版日期:2020-04-14,
纸质出版日期:2020-07-05
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亢倩丽,李壮壮,范珊珊等.基于UPLC-Q-Exactive-Orbitrap-MS的紫苏叶与紫苏梗化学成分分析[J].中国实验方剂学杂志,2020,26(13):156-162.
KANG Qian-li,LI Zhuang-zhuang,FAN Shan-shan,et al.Qualitative Analysis on Perilla frutescens Leaves and Stalks by UPLC-Q-Exactive-Orbitrap-MS[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(13):156-162.
亢倩丽,李壮壮,范珊珊等.基于UPLC-Q-Exactive-Orbitrap-MS的紫苏叶与紫苏梗化学成分分析[J].中国实验方剂学杂志,2020,26(13):156-162. DOI: 10.13422/j.cnki.syfjx.20201512.
KANG Qian-li,LI Zhuang-zhuang,FAN Shan-shan,et al.Qualitative Analysis on Perilla frutescens Leaves and Stalks by UPLC-Q-Exactive-Orbitrap-MS[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(13):156-162. DOI: 10.13422/j.cnki.syfjx.20201512.
目的
2
建立液相色谱-质谱联用技术(LC-MS)对紫苏叶与紫苏梗成分定性分析的方法,探讨紫苏叶与紫苏梗药效差异的物质基础。
方法
2
80%甲醇超声提取紫苏叶与紫苏梗药材,利用超高效液相色谱-四极杆-静电场轨道阱高分辨质谱(UPLC-Q-Exactive-Orbitrap-MS)技术对样品进行定性分析,采用Halo-C
18
色谱柱(2.1 mm×100 mm,2.7 μm),流动相0.05%甲酸水溶液-0.05%甲酸乙腈,梯度洗脱,流速0.3 mL·min
-1
,柱温40 ℃,进样量5 μL,采用正、负离子2种监测模式。
结果
2
根据对照品的保留时间,Xcalibur软件的精确相对分子质量、准分子离子峰、碎片离子,相关文献和Mass Frontier 7.0软件对紫苏中的化学成分进行识别和鉴定。共鉴定出4种氨基酸类,7种苯丙素类,10种黄酮类,12种三萜类,7种有机酸类,4种脂肪酸类成分,10个未知成分,其中算盘子酮等6种三萜酸首次在紫苏中鉴定出,共54种化合物,对其中5种不同特征的化合物进行了结构解析。紫苏叶中有45种成分,紫苏梗中有32种成分,二者有23种共有成分。
结论
2
LC-MS技术能够快速有效地对紫苏进行成分鉴定,该研究为紫苏不同部位的质量控制、开发利用提供重要的实验理论依据。
Objective
2
To establish a method for qualitative analysis of components in
Perilla frutescens
leaves and stalks by liquid chromatography-mass spectrometry (LC-MS),so as to explore the substance basis of pharmacodynamics differences between
P.frutescens
leaves and stalks.
Method
2
P. frutescens
leaves and stalks were extracted by 80% methanol-water ultrasound. The samples were analyzed by UPLC-Q-Exactive-Orbitrap-MS comprehensively. Halo-C
18
column (2.1 mm×100 mm,2.7 μm) was used for gradient elution with 0.05% formic acid aqueous-0.05% acetonitrile formate as mobile phase in positive and negative ion modes. The flow rate was 0.3 mL·min
-1
,the column temperature was 40 ℃,and the injection volume was 5 μL.
Result
2
The chemical compound in
P. frutescens
was deduced and identified based on the retention time of chromatography,and the exact molecular weight,excimer ion peaks,fragment ions and reference materials in Xcalibur software. The chemical composition of
P. frutescens
was identified by Mass Frontier 7.0 software. Totally 4 amino acids,7 phenylpropanoids,10 flavonoids,12 triterpenoids,7 organic acids,4 fatty acids,10 unknown compounds and 54 compounds were identified. Among them,6 triterpene acids
including glochidone
were identified in
P. frutescens
for the first time. The structures of five characteristic compounds were analyzed. There were 45 constituents in
P.frutescens
leaves and 32 constituents in
P. frutescens
stalks. They had 23 common constituents.
Conclusion
2
LC-MS can identify the components of
P. frutescens
rapidly and effectively. This study provides an important theoretical basis for the quality control of different parts of
P. frutescens
and the development and utilization of
P. frutescens
.
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