Capillary flow technology for gas chromatography

来源 :DaLian Internationall Symposia and Exhibition on Chromatogra | 被引量 : 0次 | 上传用户:mzhouliqun
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  In March, 2007, capillary flow technology (CFT) was introduced by Agilent Technologies.As part of this technology suite, a novel gas phase microfluidic diffusion bonded manifold was commercialized.Different from the previous generations of switches which involve the use of multi-port valves or connectors, this novel device is made based on diffusion bonding technology which bonds two metal plates together under high pressure and temperature to create microfluidie flow channels embedded within the plates.The surface-inertness, ultra low dead-volume, and easy-to-use device has the potential of being implemented in GC for several applications such as heart-cuRing (Deans switch), column back-flushing, vent-free removal of columns for mass spectrometry, un-purged effluent splitter for tandem detectors, purged three-way effluent splitter and comprehensive two dimensional gas chromatography.
其他文献
During the past decades, single-walled carbon nanotubes (SWNT) have attracted considerable attentions due to their unique chemical and physical properties.SWNT are typically intertwined bundles with v
Based on the combination of the glycerol aqueous-phase reforming(APR) and catalytic hydrogenation of glycerol, a novel reaction system of liquid phase in-situ hydrogenation of glycerol for the synthes
This study developed a rapid, sensitive, and accurate method for the simultaneously determinations of 8 commonly abused drugs/metabolites containing amine functional groups, i.e., amphetamine, methamp
A way to predict retention indices (RI) from component structures was investigated.In contrast to work already published components with different functional groups and different stationary phases wer
Pyrolysis-gas chromatography (Py-GC) and liquid chromatography (LC) are widely used for the characterization of (co)polymers.The combination of organic SEC and Py-GC, either in the off-line mode or on
For the simultaneous metabolic profiling analysis of catecholamines and polyamines in a single run, catecholamines and polyamines were first converted to (N,O)-ethoxycarbonyl (EOC) derivatives in two-
The acid-catalyzed transmethylation of triglyeerides and methylation of free fatty acids were achieved using methanolic HCl as reagent.The tert-butyldimethylsilylation of total fatty acids was perform
The quality of wine distillate depends on many factors, e.g.grape cultivars, harvesting time, quality of grape cider, activity of yeasts, fermentation, used distillation technology, quality and type o
In this research we use gas chromatography-mass spectrometry (GC-MS) to determine metabolites of toluene diisocyanate (TDI) in mice and deduce the pathway for toluene diisocyanate metabolism in the or