Electrokinetic preconcentration of magnetite core - carboxylic shell nanoparticles by capillary electrophoresis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73583925" target="_blank" >RIV/61989592:15310/17:73583925 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0021967317304892" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0021967317304892</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.chroma.2017.03.079" target="_blank" >10.1016/j.chroma.2017.03.079</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrokinetic preconcentration of magnetite core - carboxylic shell nanoparticles by capillary electrophoresis

Popis výsledku v původním jazyce

Online electrokinetic preconcentration of magnetite core/carboxylic shell nanoparticles (MNPs) was studied by capillary electrophoresis using reversed and suppressed electroosmotic flow (EOF). 50 mM sodium borate pH 9.5 was used as a background electrolyte. CTAB additive was used to reverse EOF and commercial polyvinylalcohol (PVA)-coated capillaries were used for EOF suppressed studies. Analyses in PVA-coated capillaries were more reproducible and therefore, the setup was further optimized in terms of water plug injection time, sample injection time, and voltage. Within the optimal conditions, the MNPs dispersed in water are electrokinetically loaded into BGE consisting of 50 mM sodium borate pH 9.5 using -10 kV for 120 s. In comparison with the hydrodynamic injection of 5 s by 50 mbar, the electrokinetic injection allows 860-fold preconcentration of MNPs

Název v anglickém jazyce

Electrokinetic preconcentration of magnetite core - carboxylic shell nanoparticles by capillary electrophoresis

Popis výsledku anglicky

Online electrokinetic preconcentration of magnetite core/carboxylic shell nanoparticles (MNPs) was studied by capillary electrophoresis using reversed and suppressed electroosmotic flow (EOF). 50 mM sodium borate pH 9.5 was used as a background electrolyte. CTAB additive was used to reverse EOF and commercial polyvinylalcohol (PVA)-coated capillaries were used for EOF suppressed studies. Analyses in PVA-coated capillaries were more reproducible and therefore, the setup was further optimized in terms of water plug injection time, sample injection time, and voltage. Within the optimal conditions, the MNPs dispersed in water are electrokinetically loaded into BGE consisting of 50 mM sodium borate pH 9.5 using -10 kV for 120 s. In comparison with the hydrodynamic injection of 5 s by 50 mbar, the electrokinetic injection allows 860-fold preconcentration of MNPs

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Journal of Chromatography A: Symposium Volumes

ISSN

0021-9673

e-ISSN

—

Svazek periodika

1499

Číslo periodika v rámci svazku

MAY

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

217-221

Kód UT WoS článku

000401394200024

EID výsledku v databázi Scopus

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