Determination of brominated phenols in water samples by on-line coupled isotachophoresis with capillary zone electrophoresis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F10%3A10216003" target="_blank" >RIV/61989592:15310/10:10216003 - 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

Determination of brominated phenols in water samples by on-line coupled isotachophoresis with capillary zone electrophoresis

Popis výsledku v původním jazyce

A method for determination of nine brominated phenols as environmental risk compounds was developed by on-line coupled capillary isotachophoresis and capillary zone electrophoresis (ITP-CZE). For ITP step, 1 x 10(-2) mol L-1 hydrochloric acid with 3 x 10(-2) mol L-1 ammediol pH 9.1 was used as the leading electrolyte, and 3 x 10(-2) mol L-1 beta-alanine with 2 x 10(-2) mol L-1 sodium hydroxide pH 10.05 was used as the terminating electrolyte. As the background electrolyte for CZE separation, 2.5 x 10(-2) mol L-1 beta-alanine with 2.5 x 10(-2) mol L-1 lysine pH 9.6 was used. All electrolytes contained 0.05% or 0.1% (m/v) hydroxyethylcellulose to suppress the electroosmotic flow. UV detection at wavelength 220nm was used. Detection limits in order of tens of nmol L-1 were achieved. Good repeatability of migration times (less than 0.33% RSD) and good repeatability of peak areas (less than 7.19% RSD) at concentration level 5 x 10(-8) mol L-1 were observed.

Název v anglickém jazyce

Determination of brominated phenols in water samples by on-line coupled isotachophoresis with capillary zone electrophoresis

Popis výsledku anglicky

A method for determination of nine brominated phenols as environmental risk compounds was developed by on-line coupled capillary isotachophoresis and capillary zone electrophoresis (ITP-CZE). For ITP step, 1 x 10(-2) mol L-1 hydrochloric acid with 3 x 10(-2) mol L-1 ammediol pH 9.1 was used as the leading electrolyte, and 3 x 10(-2) mol L-1 beta-alanine with 2 x 10(-2) mol L-1 sodium hydroxide pH 10.05 was used as the terminating electrolyte. As the background electrolyte for CZE separation, 2.5 x 10(-2) mol L-1 beta-alanine with 2.5 x 10(-2) mol L-1 lysine pH 9.6 was used. All electrolytes contained 0.05% or 0.1% (m/v) hydroxyethylcellulose to suppress the electroosmotic flow. UV detection at wavelength 220nm was used. Detection limits in order of tens of nmol L-1 were achieved. Good repeatability of migration times (less than 0.33% RSD) and good repeatability of peak areas (less than 7.19% RSD) at concentration level 5 x 10(-8) mol L-1 were observed.

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

<a href="/cs/project/GP203%2F07%2FP223" target="_blank" >GP203/07/P223: Studium diskontinuálních elektrolytových systémů v kapilární elektroforéze pro separaci fyziologicky aktivních látek</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

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

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Svazek periodika

1217

Číslo periodika v rámci svazku

20

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

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Kód UT WoS článku

000277893500014

EID výsledku v databázi Scopus

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