Preparation of Durable Emitter of Electrospray Mass Spectrometry by Covalently Coating the Fused-Silica Capillary Tip with Carbon-Nanotube Sol-Gel Composite Material

2014 ◽  
Vol 32 (4) ◽  
pp. 293-297 ◽  
Author(s):  
Hanzhi Zhang ◽  
Chao Liu ◽  
Xuepei Zhang ◽  
Jingwu Kang
Keyword(s):  
Mass Spectrometry ◽  
Composite Material ◽  
Carbon Nanotube ◽  
Electrospray Mass Spectrometry ◽  
Sol Gel ◽  
Fused Silica ◽  
Fused Silica Capillary ◽  
Capillary Tip ◽  
Silica Capillary

Preparation and Evaluation of Monolithic Silica Capillary Column for Reversed-Phase Capillary Liquid Chromatography

2012 ◽  
Vol 485 ◽  
pp. 136-139
Author(s):  
Ya Shun Chen ◽  
Li Jia ◽  
Wei Liu ◽  
Zhong Zhou Yi ◽  
Fang Fang He
Keyword(s):  
Liquid Chromatography ◽  
Sol Gel ◽  
Capillary Columns ◽  
Reversed Phase ◽  
Capillary Liquid Chromatography ◽  
Fused Silica ◽  
Monolithic Silica ◽  
Fused Silica Capillary ◽  
Capillary Liquid ◽  
Silica Capillary

Octadecyl-functionalized monolithic silica capillary columns with inner diameters of 100 and 200 micrometers for reversed-phase capillary liquid chromatography were prepared in the fused-silica capillary via sol-gel process. Their performance was evaluated and compared by the separation of alkylbenzenes (toluene, ethylbenzene, propylbenzene, butylbenzene). The column back pressure and linear velocity of mobile phase were investigated. The results show that the monolithic silica capillary columns exhibit good performance for the separation of alkylbenzenes.

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