用常规水蒸气蒸馏法提取杜克蓝莓果实中的挥发油，并用气相色谱-质谱法分析了其化学成分。

The essential constituents from duke blueberry fruits were extracted by steam distillation method and the essential oil obtained was analyzed by gas chromatography-mass spectrometry.

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实验结果表明AOTF -近红外光谱技术可用于烟草样品主要化学成分的常规分析。

It is concluded from this study that AOTF-NIR technique can be used to analyze tobacco constituents.

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