Thermal Modulation Methods To Improve the Efficiency of a Gas ChromatographThermal modulation techniques can be used to improve capacity, resolution, and time of analysis of a gas chromatograph. Two of-the techniques developed in our laboratories include using a GC column to store a sample (sample storage system) and applying temperature programming directly onto the wall of a capillary column. The storage system developed allowed the continuous collection of a sample profile for about 3 hours and storing it for as long as 20 hours. Thereafter, the samples were eluted maintaining the individual characteristics of the components present in it. Moreover, temperature programming was done directly on a capillary column improving the time of analysis and resolution of a mixture containing light hydrocarbons.
Document ID
20020038719
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Valentin, J. R. (NASA Ames Research Center Moffett Field, CA United States)
Dimandja, J. D. (University of Southern Illinois Carbondale, IL United States)
Do, M. T. (San Jose State Univ. CA United States)
Kaljurand, M. (Academy of Sciences of Estonia Toravere, Estonia)
Chang, Sherwood
Date Acquired
August 20, 2013
Publication Date
January 1, 1995
Subject Category
Inorganic, Organic And Physical Chemistry
Meeting Information
Meeting: American Chemical Society National Meeting