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以CYDEX -B手性毛细管柱 (25m×0.22mm,0.25μm)作为分析柱,用气相色谱法和气相色谱 -质谱联用法对天然冰片、艾片和合成冰片进行测定。合成冰片中的左旋龙脑与右旋龙脑可完全分离 ,左旋异龙脑与右旋异龙脑可部分分离。实验测得 :天然冰片中右旋龙脑的含量为99.13%～99.61 %;艾片中左旋龙脑的含量为95.87 %;合成冰片中左旋龙脑的含量为31.44 %～54.57 %,右旋龙脑的含量6.87 %～25.37 %;合成冰片的比旋度 α30D 为 -17.3°～ -2.3°。
The CYLEX-B chiral capillary column (25m × 0.22mm, 0.25μm) was used as the analytical column for the determination of natural borneol, azurite and synthetic borneol by gas chromatography and gas chromatography-mass spectrometry. Synthetic borneol in the spinosad and dextrorotary spinach can be completely separated levonorrhea and dextromethron can be partially separated. The experimental results showed that the content of dextro-rotundine in natural borneol was 99.13% -99.61%, that of levucreone in tablets was 95.87%, that of dextro-rotunda in synthetic borneol was 31.44% -54.57% The content of brain is 6.87% ~ 25.37%. The specific rotation α30D of synthetic borneol is -17.3 ° ~ -2.3 °.