WFRF:(Haglöf Jakob)
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- Haglöf, JakobUppsala universitet,Avdelningen för analytisk farmaceutisk kemi (author)
Separation of amino alcohols using divalent dipeptides as counter ions in aqueous CE
- Article/chapterEnglish2010
Publisher, publication year, extent ...
- 2010-04-22
- Wiley,2010
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:uu-125470
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-125470URI
- https://doi.org/10.1002/elps.200900702DOI
Supplementary language notes
- Language:English
- Summary in:English
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- SwePubSwePub
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Notes
- Divalent dipeptides have been introduced as counter ions in aqueous CZE. The dipeptides form ion pairs with amino alcohols in the BGE and facilitate the separation of amino alcohols. High concentrations of dipeptide caused reversed effective mobility for the analytes. The net charge of the dipeptide can be controlled using a buffer or a strong base, and regulates the interaction between the dipeptide and the amino alcohol. A stronger interaction and higher selectivity of amino alcohols was observed when the dipeptides were used as divalent counter ions, than in monovalent or uncharged form. Association constants for ion pairs between divalent dipeptides and amino alcohols can be used to enhance selectivity for amino alcohols in CZE. No chiral separation of amino alcohols was observed when using the dipeptides as ion-pairing chiral selectors in aqueous BGE, but addition of methanol to the BGE promoted enantioselectivity.
Subject headings and genre
- MEDICIN OCH HÄLSOVETENSKAP Medicinska och farmaceutiska grundvetenskaper Läkemedelskemi hsv//swe
- MEDICAL AND HEALTH SCIENCES Basic Medicine Medicinal Chemistry hsv//eng
- Association constants
- CE
- divalent counter ion
- Ion-pair formation
- reversed mobility
- Pharmaceutical chemistry
- Farmaceutisk kemi
- Analytical Pharmaceutical Chemistry
- Analytisk farmaceutisk kemi
Added entries (persons, corporate bodies, meetings, titles ...)
- Pettersson, CurtUppsala universitet,Avdelningen för analytisk farmaceutisk kemi(Swepub:uu)curtps (author)
- Uppsala universitetAvdelningen för analytisk farmaceutisk kemi (creator_code:org_t)
Related titles
- In:Electrophoresis: Wiley31:10, s. 1706-17120173-08351522-2683
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