High performance liquid chromatogarphy (HPLC) is one of the major
techniques in separation sciences. Faster separation and higher
efficiency are required to meet ever-growing demands. Despite
numerous efforts on improving mass transfer in particulate packings
discontinuity seems to be the cornerstone. Macroporous continuous
beds or monoliths are, therefore, a promising alternative to the
particle medium. The work deals with the preparation of new
monoliths used as support for HPLC stationary phase. Two different
approaches were developed: one based on the polycondensation of
epoxy resins which were dispersed in aqueous polyamine phase with
the aid of a surfactant. The other involved a traverse of linear
polyamides solutions around their upper critical solution
temperatures (UCST). The polymers, dissolved in a solvent at
temperatures higher than their UCSTs followed by slow cooling to
below these temperatures to precipitate the polymers. Partly
re-established hydrogen bonds resulted in the formation of
crystallites that interconnected into a network structure. The
study also deals with surface modifying for chromatographic
applications.
General
Imprint: |
Lap Lambert Academic Publishing
|
Country of origin: |
Germany |
Release date: |
June 2010 |
First published: |
June 2010 |
Authors: |
Anh Mai Nguyen
|
Dimensions: |
229 x 152 x 7mm (L x W x T) |
Format: |
Paperback - Trade
|
Pages: |
108 |
ISBN-13: |
978-3-8383-2234-6 |
Categories: |
Books >
Science & Mathematics >
Chemistry >
Organic chemistry >
General
|
LSN: |
3-8383-2234-7 |
Barcode: |
9783838322346 |
Is the information for this product incomplete, wrong or inappropriate?
Let us know about it.
Does this product have an incorrect or missing image?
Send us a new image.
Is this product missing categories?
Add more categories.
Review This Product
No reviews yet - be the first to create one!