流苏石斛中3种木脂素类成分的含量测定研究  

Determination of the Contents of Three Lignans inDendrobium fimbriatum Hook.

作　　者：黄樱华[1] 张林 李锦妍 李志斌 梁芷韵 杨丽娥[1] 魏刚[3] 黄月纯[1] HUANG Ying-Hua;ZHANG Lin;LI Jin-Yan;LI Zhi-Bin;LIANG Zhi-Yun;YANG Li-E;WEI Gang;HUANG Yue-Chun(The First Affiliated Hospital of Guangzhou University of Chinese Medicine,Guangzhou 510405 Guangdong,China;The First Clinical Medical School of Guangzhou University of Chinese Medicine,Guangzhou 510006 Guangdong,China;School of Pharmaceutical Sciences,Guangzhou University of Chinese Medicine,Guangzhou 510006 Guangdong,China;The Fifth Hospital of Guangzhou Medical University,Guangzhou 510700 Guangdong,China)

机构地区：[1]广州中医药大学第一附属医院,广东广州510405 [2]广州中医药大学第一临床医学院,广东广州510006 [3]广州中医药大学中药学院,广东广州510006 [4]广州医科大学附属第五医院,广东广州510700

出　　处：《广州中医药大学学报》2024年第1期207-212,共6页Journal of Guangzhou University of Traditional Chinese Medicine

摘　　要：【目的】建立流苏石斛中3种木脂素类成分的含量测定方法。【方法】应用高效液相色谱-电喷雾-离子肼质谱(HPLCESI-MSn)联用技术以及高效液相色谱(HPLC)保留时间定位结合紫外吸收光谱(UV)比对鉴定流苏石斛中的木脂素类成分。采用Kromasil 100-5 C18色谱柱(4.6 mm×250 mm,5μm),乙腈-0.1%甲酸溶液为流动相进行梯度洗脱,体积流量为0.8 mL·min-1,柱温为35℃,质谱使用ESI离子源,负离子模式下采集数据。HPLC含量测定采用与MS分析相同的色谱柱,流动相甲醇+乙腈(V/V=1∶1)-0.01 mol/L乙酸铵溶液,梯度洗脱,流速0.8 mL·min-1,柱温40℃,检测波长为215 nm。【结果】从流苏石斛中鉴定出丁香树脂酚双葡萄糖苷、丁香树脂酚单葡萄糖苷、丁香树脂酚,含量测定结果显示丁香树脂酚双葡萄糖苷、丁香树脂酚单葡萄糖苷、丁香树脂酚线性范围分别为0.1701~3.4020、0.1020~2.0400、0.0403~0.8060μg(r≥0.9995),平均加样回收率范围在97.71%~101.67%,相对标准偏差(RSD)均小于3.0%。10批样品丁香树脂酚双葡萄糖苷、丁香树脂酚单葡萄糖苷、丁香树脂酚的含量分别为0.7779~1.3852、0.0734~0.1966、0.0295~0.1882 mg·g-1。【结论】本研究方法可为流苏石斛的质量评价提供参考依据。Objective To establish the method for content determination of three lignans of Dendrobium Fimbriatum Hook..Methods The lignans in Dendrobium tasselii were identified by high-performance liquid chromatography/multi-stage mass spectrometry(HPLC-ESI/MSn)coupled with ultraviolet absorption spectrometry(UV)coupled with retention time localization of high-performance liquid chromatography(HPLC).The separation was carried out on a Kromasil 100-5 C18 column(4.6 mm×250 mm,5μm)using a gradient elution of acetonitrile-0.1%formic acid solution as the mobile phase,the volume flow rate was 0.8 mL·min-1 and the column temperature was 35℃,and the mass spectrometry was performed using an ESI ion source with the data collected in the negative ion mode.The HPLC content was determined on the same column as that of MS analysis,with the mobile phase methanol+acetonitrile(V/V=1∶1)-0.01 mol/L ammonium acetate solution,gradient elution,flow rate of 0.8 mL·min-1,column temperature of 40℃,and detection wavelength of 215 nm.Results Syringaresinol di-O-glucoside and(-)-Syringaresinol 4-O-β-D-glucopyranoside and DL-Syringaresinol were identified from Dendrobium fimbriatum Hook.,and the results of content determination showed that the linear ranges of above three components were respectively 0.1701-3.4020,0.1020-2.0400,0.0403-0.8060μg(r≥0.9995),the average recoveries were in the range of 97.71%-101.67%,and the relative standard deviations(RSDs)were all less than 3.0%.The contents of Syringaresinol di-O-glucoside and(-)-Syringaresinol 4-O-β-D-glucopyranoside and DL-Syringaresinol in the 10 batches of samples were 0.7779-1.3852,0.0734-0.1966,0.0295-0.1882 mg·g-1.Conclusion This research method can provide a reference basis for the quality evaluation method of Dendrobium fimbriatum Hook..

关 键 词：流苏石斛 丁香树脂酚双葡萄糖苷 丁香树脂酚单葡萄糖苷 丁香树脂酚 含量测定 质量评价 

分 类 号：R282.5[医药卫生—中药学]