中国中药杂志

2016, v.41(13) 2493-2499

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高效液相色谱定量分析比较4种虫草药材的核苷类成分
Quantitative analysis of nucleosides in four Cordyceps genus by HPLC

钱正明;李文庆;王传喜;周妙霞;孙敏甜;高昊;李文佳;
QIAN Zheng-ming;LI Wen-qing;WANG Chuan-xi;ZHOU Miao-xia;SUN Min-tian;GAO Hao;LI Wen-jia;Key Laboratory of State Administration of Traditional Chinese Medicine,Sunshine Lake Pharma Co.,Ltd.;Institute of Traditional Chinese Medicine & Natural Products,College of Pharmacy,Jinan University;

摘要(Abstract):

为比较4种常见虫草类药材(冬虫夏草、蛹虫草、虫草菌丝体和蝉花)中核苷类成分的差异,该研究以0.5%磷酸溶液提取样本,色谱柱为Zorbax SB-Aq(4.6 mm×150 mm,5μm),流动相为0.04 mol·L-1磷酸二氢钾溶液(A)和乙腈(B),梯度洗脱,流速为0.8 m L·min-1,检测波长260 nm,柱温30℃,对4类药材产品进行分析。已知核苷以外标一点法进行计算,未知成分以腺苷为对照进行计算,并对测定结果进行聚类分析,同时利用指纹图谱相似度软件对不同样本进行了比较。结果显示,冬虫夏草、蛹虫草、虫草菌丝体、蝉花4种药材中的核苷类成分差异较大,聚类分析和指纹图谱分析均可有效区分冬虫夏草和其他3种虫草药材。该研究建立的核苷测定方法准确可靠,可用于虫草类产品的品质评价。
To compare the main nucleosides in Cordyceps genus herbs( C. sinensis,C. millitaris,Hirsutella sinensis and C.sobolifera),an HPLC method for simultaneous determination of uridine,inosine,guanosine,adenosine and cordycepine in Cordyceps genus herbs was developed. The sample was extracted with 0. 5 % phosphoric acid solution to prepare test solution. The separation was performed on a Zorbax SB-Aq( 4. 6 mm × 150 mm,5 μm) column with gradient elution by 0. 04 mol· L- 1potassium dihydrogen phosphate solution and acetonitrile,column temperature 30 ℃,flow rate 0. 8 m L · min- 1,and detection wavelength 260 nm. The content of nucleosides in four Cordyceps genus herbs was evaluated by fingerprint analysis and hierarchical cluster analysis( HCA). The calibration curves of five nucleosides showed good linear regression( r > 0. 99) and the average recoveries were between 95. 0 % and 105. 0 %. The contents of the five nucleosides in the four Cordyceps genus herbs were different and could be obviously distinguished by HCA. The fingerprint analysis result showed that the similarity between C. sinensis and the others was less than 0. 9. The method was accurate and reliable,which can be used for quality control of Cordyceps genus herbs.

关键词(KeyWords): 虫草;高效液相;核苷;聚类分析;指纹图谱
Cordyceps;HPLC;nucleoside;hierarchical cluster analysis;fingerprint

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基金项目(Foundation): 国家中医药管理局行业科研专项(201507002)

作者(Author): 钱正明;李文庆;王传喜;周妙霞;孙敏甜;高昊;李文佳;
QIAN Zheng-ming;LI Wen-qing;WANG Chuan-xi;ZHOU Miao-xia;SUN Min-tian;GAO Hao;LI Wen-jia;Key Laboratory of State Administration of Traditional Chinese Medicine,Sunshine Lake Pharma Co.,Ltd.;Institute of Traditional Chinese Medicine & Natural Products,College of Pharmacy,Jinan University;

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