天然产物研究与开发 ›› 2014, Vol. 26 ›› Issue (10): 1628-1633.

• 研究简报 • 上一篇    下一篇

不同商品来源降香药材中挥发油质量研究

徐波,陈红,牛涛,孙茜*,赵国辉   

  1. 天津天士力集团,天津 300402
  • 出版日期:2014-10-30 发布日期:2014-10-31

Study on Quality of Volatile Oil of Dalbergia odorifera from Different Origins

XU Bo,CHEN Hong,NIU Tao,SUN Qian*,ZHAO Guo-hui   

  1. Tianjin Tasly Group,Tianjin 300402,China 
  • Online:2014-10-30 Published:2014-10-31

摘要: 建立降香药材所含挥发油相对密度及反式苦橙油醇含量测定方法,并对不同商品来源降香药材进行质量评价。水蒸气蒸馏法提取降香挥发油,采用比重瓶法测定相对密度,气相色谱法测定反式苦橙油醇含量,采用HP5色谱柱,FID检测器,以正十四烷为内标进行测定。比重瓶法准确性[RAD(相对平均偏差)%<5%(n=10)]、重复性(RSD 0.04%<2%)、中间精密度[RAD%<5%(n=15)]均良好,可替代韦氏比重秤法(用量100 mL)用于降香药材相对密度检测。气相色谱法进样精密度RSD%=0.2%,重复性RSD%=0.5%,稳定性RSD%=0.6%,线性范围为0.203~5.080 mg/mL(r=0.9995),回收率为100.5%,RSD%=1.37%(n=6)。采用比重称法测定降香药材相对密度,供试品用量少(5 mL),方法简便可行,气相色谱法简单、灵敏、准确、重线性好,适用于降香油中反式苦橙油醇含量的测定,不同商品来源降香药材出油率、相对密度、反式苦橙油醇含量差别较大,分别为1.72%~3.50%、0.8680~0.9294/20 ℃、40.4%~85.4%。

关键词: 降香, 比重瓶法, 相对密度, 气相色谱法, 反式苦橙油醇

Abstract: The objectives of this study were to develop an analytical method for the determination of the relative density of volatile oil and concentration of d-nerolidol in Dalbergia odorifera, and hence to evaluate the quality of D.odorifera from different origins.D.odorifera volatile oil was extracted by steam distillation.The relative density of volatile oil was determined by pycnometer method.Gas chromatography coupled with flame ionization detector (GCFID) was used to determine the concentration of d-nerolidol.Pycnometer method was accurate [RAD<5%(n=10)] with good repeatability (RSD 0.04%<2%) and precision [RAD%<5%(n=15)].Westphal balance method was successfully substituted by pycnometer method to determinate the relative density of volatile oil in D.odorifera.GCFID method was accurate and precise with RSD%< 1%.The linear relationship within the range of 0.203~5.080 mg/mL(r=0.9995) was good.The recovery was 100.5% with RSD 1.37% (n=6).Pycnometer method was simple for the determination of the relative density of volatile oil from D.odorifera with using less amount of sample.The developed GCFID method was accurate and sensitive with good reproducibility.This method was capable to be used for the determination of volatile oil in D.odorifera.The yield of volatile oil,relative density and concentration of d-nerolidol of volatile oil from D.odorifera varied with origins.

Key words: Dalbergia odorifera, pycnometer method;relative density;gas chromatography;d-nerolidol

中图分类号: 

R282.71