Rapid capillary coating by epoxy-poly-(dimethylacrylamide): Performance in capillary zone electrophoresis of protein and polystyrene carboxylate.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081715%3A_____%2F01%3A25010011" target="_blank" >RIV/68081715:_____/01:25010011 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Rapid capillary coating by epoxy-poly-(dimethylacrylamide): Performance in capillary zone electrophoresis of protein and polystyrene carboxylate.

Popis výsledku v původním jazyce

A fast and simple method for the internal coating of capillaries in capillary zone electrophoresis (CZE) is that with epoxy-poly(dimethylacrylamide) (EPDMA), Duration of coating by that method is 30 min, compared with that of 24 h when using uncross-linked polyacrylamide (PA) under otherwise identical conditions. Under the conditions used for the CZE of proteins (pH 9.0, 2% polyethylene glycol), the capillary coating with EPDMA is stable for at least 50 consecutive runs as judged by the constancy of lowelectroosmotic flow, equalling the stability of coating achieved by PA. Protein mobilities and protein peak asymmetry (suggestive of reversible interaction with the capillary wall) are also found to be the same in EPDMA and PA coated capillaries. Differences between EPDMA and PA coating also exist. The former is unstable upon lowering the ionic strength of the buffer to 0.003, upon the addition of sodium dodecyl sulfate (SDS) to the buffer and in application to the hydrophobic analyte,

Název v anglickém jazyce

Rapid capillary coating by epoxy-poly-(dimethylacrylamide): Performance in capillary zone electrophoresis of protein and polystyrene carboxylate.

Popis výsledku anglicky

A fast and simple method for the internal coating of capillaries in capillary zone electrophoresis (CZE) is that with epoxy-poly(dimethylacrylamide) (EPDMA), Duration of coating by that method is 30 min, compared with that of 24 h when using uncross-linked polyacrylamide (PA) under otherwise identical conditions. Under the conditions used for the CZE of proteins (pH 9.0, 2% polyethylene glycol), the capillary coating with EPDMA is stable for at least 50 consecutive runs as judged by the constancy of lowelectroosmotic flow, equalling the stability of coating achieved by PA. Protein mobilities and protein peak asymmetry (suggestive of reversible interaction with the capillary wall) are also found to be the same in EPDMA and PA coated capillaries. Differences between EPDMA and PA coating also exist. The former is unstable upon lowering the ionic strength of the buffer to 0.003, upon the addition of sodium dodecyl sulfate (SDS) to the buffer and in application to the hydrophobic analyte,

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2001

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Electrophoresis

ISSN

0173-0835

e-ISSN

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Svazek periodika

22

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

656-659

Kód UT WoS článku

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EID výsledku v databázi Scopus

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