| 顶空低温液相微萃取技术分析水中杂醇油和啤酒挥发性成分 |
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| 引用本文： | 陈士恒,王建伟,李伟伟,彭虹,关亚风.顶空低温液相微萃取技术分析水中杂醇油和啤酒挥发性成分[J].分析化学,2011,39(5):675-679. |
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| 作者姓名： | 陈士恒 王建伟 李伟伟 彭虹 关亚风 |
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| 作者单位： | 陈士恒,CHEN Shi-Heng(中国科学院大连化学物理研究所仪器分析化学研究室,中国科学院分离分析化学重点实验室,大连,116023;中国科学院研究生院,北京,100039);王建伟,李伟伟,彭虹,关亚风,WANG Jian-Wei,LI Wei-Wei,PENG Hong,GUAN Ya-Feng(中国科学院大连化学物理研究所仪器分析化学研究室,中国科学院分离分析化学重点实验室,大连,116023) |
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| 基金项目： | 国家自然科学基金，"863"计划，中国科学院知识创新工程 |
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| 摘 要： | 顶空液相微萃取(HS-LPME)存在溶剂稳定性不高,只能采用沸点较高的溶剂,容易干扰样品组分测定等缺点.顶空低温液相微萃取装置(HS-CLPME)以带有台阶形圆柱腔体的聚四氟乙烯小帽为萃取剂的载体,利用半导体制冷技术(TEC)将萃取剂冷却至最低-20℃,采用挥发性溶剂进行顶空液相微萃取(HS-CLPME),扩展了HS-...
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| 关 键 词： | 温度控制-顶空液相微萃取 半导体制冷 气相色谱 杂醇油 啤酒 |
A Headspace Cooled-liquid Phase Microextraction Technique and Its Application for Analysis of Fusel Oil in Water Samples and Volatile Compounds in Beer |
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| CHEN Shi-Heng,WANG Jian-Wei,LI Wei-Wei,PENG Hong,GUAN Ya-Feng.A Headspace Cooled-liquid Phase Microextraction Technique and Its Application for Analysis of Fusel Oil in Water Samples and Volatile Compounds in Beer[J].Chinese Journal of Analytical Chemistry,2011,39(5):675-679. |
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| Authors: | CHEN Shi-Heng WANG Jian-Wei LI Wei-Wei PENG Hong GUAN Ya-Feng |
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| Institution: | CHEN Shi-Heng1,2,WANG Jian-Wei1,LI Wei-Wei1,PENG Hong1,GUAN Ya-Feng1 1(Department of Instrumentation & Analytical Chemistry,Key Laboratory of Separation Science for Analytical Chemistry,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,National Chromatographic R.&A.Center,Dalian 116023) 2(Graduate School of Chinese Academy of Sciences,Beijing 100039) |
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| Abstract: | A novel Headspace cooled-liquid phase microextraction(HS-CLPME) has been developed and demonstrated.A polytetrafluoroethylene vial cap with a two-step cylindrical cavity was used as solvent drop holder,and a cooling system based on thermoelectric cooler(TEC) was used to lower the temperature of solvent drop to subzero.Volatile solvents can be used as extractant in HS-CLPME,which extends the selection of extractant for HS-LPME,reduces the interference of the large solvent peak to the analytes peaks,and enhan... |
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| Keywords: | Headspace cooled-liquid phase microextraction Thermoelectric cooler Gas chromato-graphy Fusel oil Beer |
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