The obstructive factor in gas chromatography Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/jd4731659

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • The study of the obstructive factor by Hawkes (11) showed a relation between the obstructive factor and velocity using a continuous method. Later, Bowers and Hawkes (12) developed a similar method with some improvements in the apparatus and found out that the obstructive factor was not flow dependent. This study uses Bowers and Hawkes' apparatus with some changes and restudies the relationship between the obstructive factor and velocity with unretained gases on glass beads. The dependence of the obstructive factor on velocity was verified. The effects of diffusion coefficients and the particle-to-column diameter ratios on the obstructive factor-velocity relationship were investigated. The results are consistent with Hawkes' hypothesis (11) that values of y at low velocities are averages over tightly packed and loosely packed domains while at high velocities they are weighted in favor of the loosely packed domains where there is more flow. However, no explanation has been found for Bowers and Hawkes' results.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome) using ScandAll PRO 1.8.1 on a Fi-6670 in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2013-09-10T19:08:41Z (GMT). No. of bitstreams: 1 ThumneumPornpan1981.pdf: 228943 bytes, checksum: 9de6e677526d96c257958389eba100dc (MD5) Previous issue date: 1980-12-16
  • description.provenance : Submitted by Katy Davis (kdscannerosu@gmail.com) on 2013-08-29T19:55:14Z No. of bitstreams: 1 ThumneumPornpan1981.pdf: 228943 bytes, checksum: 9de6e677526d96c257958389eba100dc (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2013-08-30T20:49:07Z (GMT) No. of bitstreams: 1 ThumneumPornpan1981.pdf: 228943 bytes, checksum: 9de6e677526d96c257958389eba100dc (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2013-09-10T19:08:41Z (GMT) No. of bitstreams: 1 ThumneumPornpan1981.pdf: 228943 bytes, checksum: 9de6e677526d96c257958389eba100dc (MD5)

Relationships

In Administrative Set:
Last modified: 10/20/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items