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题名: Design of a direct-heating fast temperature programming device for fast gas chromatography
作者: Xu Feng;  Guan Wen-Na;  Lian Mei;  Xu Yuan;  Guan Ya-Feng
关键词: fast gas chromatography ;  fast temperature programming ;  direct resistive heating technique ;  direct-heating column
刊名: CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
发表日期: 2007-06-01
卷: 28, 期:6, 页:1055-1058
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: A direct-heating fast temperature programming device for fast gas chromatography was designed and evaluated. A metal capillary column was used both as a separation column and as a heating element. Pulsed current heating strategy was used to heat the column, and at the same time, gave the time lag for self-equilibrium of the metal tubing during a temperature programming. A fast PID control was used to facilitate the fast pulse heating. The correlation coefficients of temperature programming curves were more than 0.9996 between 40-150 with tunable heating rates varying from 1 to 5 degrees C/s. The power consumption of the device was 74 W max, and was less than 50 W on average. The separation time was within 34 s for n-alkanes (nC(8)-nC(17)), with relative standard deviations of the retention times between 0.22% and 0.55%. The cool down time plus the equilibration time is less than 30 s. The device is suitable for the analysi's of semi-and volatile organic compounds in portable GC.
关键词[WOS]: INSTRUMENTATION
语种: 英语
WOS记录号: WOS:000247454200013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140407
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dept Instrumentat & Analyt Chem, Dalian 116023, Peoples R China

Recommended Citation:
Xu Feng,Guan Wen-Na,Lian Mei,et al. Design of a direct-heating fast temperature programming device for fast gas chromatography[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2007,28(6):1055-1058.
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