Please use this identifier to cite or link to this item:
Title: Effects of pressure drop on supercritical fluid chromatography.
Authors: Lim, Lenard Junming.
Keywords: DRNTU::Science::Chemistry::Analytical chemistry::Chromatography
Issue Date: 2009
Abstract: This project investigates the effects of pressure drop on the physical properties changes of supercritical carbon dioxide in a chromatography column. Axial temperature measurements of the chromatography column were made with surface type thermocouples. The chromatography column is insulated with a cotton layer and kept in a Styrofoam container, and the entire chromatography column and insulation are housed within an oven. It is found out experimentally that the axial temperature change of CO2 decreases along the chromatography column. Numerical simulations were also performed to model the axial temperature gradient in the column. The simulations yielded a good approximation term when a heat transfer term is added; thereby validating that heat transfer through the column wall is important. These results are important to understand the dynamics of supercritical fluid chromatography system.
Rights: Nanyang Technological University
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Student Reports (FYP/IA/PA/PI)

Files in This Item:
File Description SizeFormat 
  Restricted Access
541.59 kBAdobe PDFView/Open

Page view(s) 50

checked on Oct 24, 2020

Download(s) 50

checked on Oct 24, 2020

Google ScholarTM


Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.