GC-MS建立石菖蒲挥发油特征指纹图谱方法学研究

目的 :建立石菖蒲挥发油GC-MS分析色谱条件 ,初步拟定挥发油指纹特征图谱指标成分群。方法 :采用GC-MS法分析 10批石菖蒲挥发油化学成分。结果 :在进样口温度 250℃ ,接口温度 230℃ ,载气流速 1.3mL·min^-1,柱压 80kPa ,电离电压 1.4kV ,升温速率 3℃·min^-1的色谱条件下 ,石菖蒲挥发油主成分可达到较好分离 ;挥发油主要含有甲基丁香酚 (2.13% )、顺式甲基异丁香酚 (4.48% )、反式甲基异丁香酚 (0.82% )、γ-细辛醚 (4.51% )、β-细辛醚 (66.15% )、α-细辛醚 (6.35% )等 6个特征成分 ;以此 6个主要共有峰为评价指标 ,GC-MS色谱条件的精密度、稳定性、重现性良好。结论 :方法准确可靠 ,重复性好 ,可用于石菖蒲挥发油指纹图谱的研究。

Study on GC-MS fingerprint analysis in rhizome of volatile oil of Acorus tatarinowii

OBJECTIVE: To establish the method of fingerprint analysis on volatile oil in rhizome of Acorus tatarinowii by GC-MS, and to study the main characteristic components. METHOD: The main components of 10 samples were determined by GC-MS. RESULT: The injector temperature was 250 degrees C. The interface temperature was 230 degrees C. The column flow was 1.3 mL x min(-1). The column pressure was 80 kPa. The detector volt was 1.4 kV. The temperature rate was 3 degrees C x min(-1). And the main characteristic components were composed of the methyleugenol (2.13%), cis-methylisoeugenol (4.48%), trans-methylisoeugenol (0.82%), gamma-asarone (4.51%), beta-asarone (66.15%), alpha-asarone (6.35%). And the RSD of precision and reproducibility and stability was almost in the range of 5%. CONCLUSION: The method is reliable, accurate and can be used for fingerprint analysis of volatile oil of Acorus tatarinowii.