Programmed cross flow asymmetrical flow field-flow fractionation for the size separation of pullulans and hydroxypropyl cellulose
(2006) In Journal of Chromatography A 1134(1-2). p.236-245- Abstract
- Different functions for the programming of the cross flow in asymmetrical flow field-flow fractionation were studied with the aim to find the flow conditions most suitable for the molar mass distribution analysis of high molecular weight polysaccharides. A mixture of four differently sized pullulans covering the molar mass range 5.8 x 10(3)-1.6 x 106 g mol(-1) were used as a model sample. Two types of programs were studied, linear and exponential decays, both with and without initial periods of a constant cross flow. For comparison, nonprogrammed runs, i.e. using constant cross flow, were studied. It was found that exponentially decaying cross flow gave the most uniform molar mass selectivity across the fractogram. The programmed cross... (More)
- Different functions for the programming of the cross flow in asymmetrical flow field-flow fractionation were studied with the aim to find the flow conditions most suitable for the molar mass distribution analysis of high molecular weight polysaccharides. A mixture of four differently sized pullulans covering the molar mass range 5.8 x 10(3)-1.6 x 106 g mol(-1) were used as a model sample. Two types of programs were studied, linear and exponential decays, both with and without initial periods of a constant cross flow. For comparison, nonprogrammed runs, i.e. using constant cross flow, were studied. It was found that exponentially decaying cross flow gave the most uniform molar mass selectivity across the fractogram. The programmed cross flow was applied to the molar mass distribution analysis of a technical quality of hydroxypropyl cellulose. (c) 2006 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/376988
- author
- Leeman, Mats LU ; Wahlund, Karl-Gustav LU and Wittgren, Bengt
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- programmed field-flow fractionation, polysaccharides
- in
- Journal of Chromatography A
- volume
- 1134
- issue
- 1-2
- pages
- 236 - 245
- publisher
- Elsevier
- external identifiers
-
- wos:000242059400030
- scopus:33750285077
- ISSN
- 0021-9673
- DOI
- 10.1016/j.chroma.2006.08.065
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Analytical Chemistry (S/LTH) (011001004)
- id
- dcf6d511-b924-44fe-8cac-331e74e8a1fe (old id 376988)
- date added to LUP
- 2016-04-01 16:26:45
- date last changed
- 2022-03-15 00:29:10
@article{dcf6d511-b924-44fe-8cac-331e74e8a1fe,
abstract = {{Different functions for the programming of the cross flow in asymmetrical flow field-flow fractionation were studied with the aim to find the flow conditions most suitable for the molar mass distribution analysis of high molecular weight polysaccharides. A mixture of four differently sized pullulans covering the molar mass range 5.8 x 10(3)-1.6 x 106 g mol(-1) were used as a model sample. Two types of programs were studied, linear and exponential decays, both with and without initial periods of a constant cross flow. For comparison, nonprogrammed runs, i.e. using constant cross flow, were studied. It was found that exponentially decaying cross flow gave the most uniform molar mass selectivity across the fractogram. The programmed cross flow was applied to the molar mass distribution analysis of a technical quality of hydroxypropyl cellulose. (c) 2006 Elsevier B.V. All rights reserved.}},
author = {{Leeman, Mats and Wahlund, Karl-Gustav and Wittgren, Bengt}},
issn = {{0021-9673}},
keywords = {{programmed field-flow fractionation; polysaccharides}},
language = {{eng}},
number = {{1-2}},
pages = {{236--245}},
publisher = {{Elsevier}},
series = {{Journal of Chromatography A}},
title = {{Programmed cross flow asymmetrical flow field-flow fractionation for the size separation of pullulans and hydroxypropyl cellulose}},
url = {{http://dx.doi.org/10.1016/j.chroma.2006.08.065}},
doi = {{10.1016/j.chroma.2006.08.065}},
volume = {{1134}},
year = {{2006}},
}