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In-line application...
In-line application of electric fields in capillary separation systems
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- Eriksson, Björn, 1976- (författare)
- Karlstads universitet,Institutionen för kemi
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- Blomberg, Lars (preses)
- Karlstads universitet,Institutionen för kemi
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Andersson, Magnus (preses)
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- Macka, Miroslav, Dr. (opponent)
- Dublin City University
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(creator_code:org_t)
- ISBN 9170630860
- Fakulteten för teknik- och naturvetenskap, 2006
- Engelska.
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Serie: Karlstad University Studies, 1403-8099 ; 2006:55
- Relaterad länk:
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https://kau.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The magnitude of an electric field possible to apply in a capillary separation system is limited, because a high electric field causes a too high current through the capillary. Application of the electric field in-line will give an increased conductivity in the column, further increasing the risk of too high currents. The conductivity changes were found to result from an overall increase in ionic strength within the electric field. The increase in ionic strength is caused by the increase in mobile phase ions with electrophoretic velocity against the flow, together with OH- or H3O+ ions (depending on polarity) formed at the inlet electrode. Further it was found that the use of a pressurized reservoir or splitting of the flow at the inlet electrode could significantly limit the conductivity changes and thereby the maximum applicable electric field strengths could be increased.
Ämnesord
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
Nyckelord
- capillary separation
- conductivity
- in-line
- electric field assisted liquid chromatography
- Analytical chemistry
- Analytisk kemi
- Kemi
- Chemistry
Publikations- och innehållstyp
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- dok (ämneskategori)
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