Generalized polymer effective charge measurement by capillary isotachophoresis

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F14%3A00435675" target="_blank" >RIV/61388963:_____/14:00435675 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.chroma.2014.10.025" target="_blank" >http://dx.doi.org/10.1016/j.chroma.2014.10.025</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.chroma.2014.10.025" target="_blank" >10.1016/j.chroma.2014.10.025</a>

Result language
angličtina
Original language name
Generalized polymer effective charge measurement by capillary isotachophoresis
Original language description
In this work, we have generalized the use of capillary isotachophoresis as a universal method for determination of effective charge of anionic and cationic (co)polymers on ordinary capillary electrophoresis instruments. This method is applicable to a broad range of strong or weak polyelectrolytes with good repeatability. Experimental parameters (components and concentrations of leading and terminating electrolytes, capillary diameters, constant electric current intensity) were optimized for implementation in 100 mu m i.d. capillaries for both polyanions and polycations. Determined values of polymer effective charge were in a very good agreement with those obtained by capillary electrophoresis with indirect UV detection. Uncertainty of the effective charge measurement using isotachophoresis was addressed and estimated to be similar to 5-10% for solutes with mobilities in the 20-50 x 10(-9) m(2) V-1 s(-1) range.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CB - Analytical chemistry, separation
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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