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用水蒸气蒸馏法从青蒿中提取挥发油。用气相色谱-质谱联用法进行了检测,再通过直观推导式演进特征投影(HELP)法对产生的二维色谱质谱数据进行了解析,得到各组分的纯色谱和质谱,对其化学成分进行了鉴定,用归一法计算了各组分的相对质量分数。分离得51个化学组分峰,并确定出其中43个化学成分,占挥发油总量的98.9。青蒿挥发油主要成分为w(Bisabolol)=23.47,w(Bisabolol oxide B)=11.31,w(Trans-Nerolidol)=10.04,w(Bisabolol oxide A)=6.27等。
Steam distillation was used to extract volatile oil from Artemisia annua. The gas chromatograph-mass spectrometry was used for the detection, and the two-dimensional chromatographic mass spectral data generated were analyzed by the intuitively derivatized evolution feature projection (HELP) method. The pure chromatograms and mass spectra of the components were obtained, and their chemical compositions were analyzed. The identification was performed and the relative mass fraction of each component was calculated using the normalization method. 51 chemical constituent peaks were isolated and 43 of them were identified, accounting for 98.9 of the total volatile oil. The main components of the volatile oil of Artemisia annua were w (Bisabolol) = 23.47, w (Bisabolol oxide B) = 11.31, w (Trans-Nerolidol) = 10.04, and w (Bisabolol oxide A) = 6.27.