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作 者:于翠[1] 杨金娟[2] 魏洪敏[2] 师宇华[2]
机构地区:[1]燕京理工学院化工与材料工程学院,北京燕郊065201 [2]吉林大学化学学院,吉林长春130012
出 处:《信阳师范学院学报(自然科学版)》2015年第2期231-234,共4页Journal of Xinyang Normal University(Natural Science Edition)
基 金:国家自然科学基金项目(20801022);吉林大学自然科学研究项目(421031471412)
摘 要:利用超声雾化-固相萃取法萃取,气相色谱法和气相色谱-质谱法测定了小茴香中的挥发油.采用正十四烷作为洗脱溶剂,体积为50μL、吹扫气流速为200 m L/min,吹扫时间为5 min.利用优化后的方法测定了小茴香中挥发性成分的种类和含量,与水蒸馏提取法所得结果相似.测定样品溶液中挥发性成分的回收率为65.8%~102.0%,相对标准偏差小于8.0%.The ultrasonic nebulization extraction coupled with solid-phase extraction (UNE-SPE) followed by gas chromatography and gas chromatography-mass spectrometry was developed and applied to extract and determine the vol- atile compounds from foeniculum vulgare mill. Experimental parameters, including the kind of extraction solvent (ntetradeeane) , solvent volume (50 μL) , flow rate of purging gas (200 mL/min) and purging time (5 min) , were ex- amined and optimized. The contents of the constituents from foeniculum vulgare mill obtained by the proposed method were closed to those obtained by hydro-distillation (HD). The recoveries for determining the four constituents are be- tween 65.8% - 102.0% and RSDs are less than 8.0% .
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