以废次烟叶为原料,通过微波辅助处理废次烟叶,用高效液相色谱法检测提取液中烟碱的含量;考察了乙醇浓度、料液比、微波功率、微波辐射时间和微波提取温度对烟碱提取率的影响,得到了提取烟碱的最优工艺条件;实验结果表明,微波辅助提取烟碱的最佳条件为：乙醇浓度为60%,料液比为1∶45,微波功率为320 W,微波辐射时间为6 min,微波提取温度50℃,在优化条件下,烟碱提取率为89.2%;方法具有具有快速准确、灵敏度高、节约能源、绿色环保、适应范围广等特点。
Nicotine is extracted from discard tobacco by microwave-assisted extraction method, and the nicotine content in the extraction solution is detected by high performance liquid chromatography. The ethanol concentration, ratio of material to liquid, microwave power, microwave radiation time and extraction temperature are studied to get the optimal technique condition for nicotine extraction. The results show that the optimal conditions for microwave-assisted extraction are as follow ： the ethanol concentration is 60%, the ratio of material to liquid is 1：45, microwave power is 320W, microwave time is 6 rain, and extraction temperature is 50OC, under which the extraction rate of nicotine is up to 89.2%. The method has the qualities of rapidness, precision, energy efficiency, environmental protection, wide suitability, etc.
Journal of Chongqing Technology and Business University：Natural Science Edition
high performance liquid chromatography