Development of an online solid-phase extraction with liquid chromatography method based on polymer monoliths for the determination of dopamine

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F16%3A39915935" target="_blank" >RIV/00216275:25310/16:39915935 - isvavai.cz</a>

Výsledek na webu

<a href="http://apps.webofknowledge.com/Search.do?product=WOS&SID=E2PbjPruZIf4crFxEcX&search_mode=GeneralSearch&prID=0248833b-ce7c-42f9-83d0-a58fdb3d5672" target="_blank" >http://apps.webofknowledge.com/Search.do?product=WOS&SID=E2PbjPruZIf4crFxEcX&search_mode=GeneralSearch&prID=0248833b-ce7c-42f9-83d0-a58fdb3d5672</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/jssc.201600818" target="_blank" >10.1002/jssc.201600818</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Development of an online solid-phase extraction with liquid chromatography method based on polymer monoliths for the determination of dopamine

Popis výsledku v původním jazyce

Porous polymer monoliths have been used to develop an online solid-phase extraction with liquid chromatography method for determination of dopamine in urine as well as for a continuous monitoring of dopamine in flowing system. A polymerization mixture containing 4-vinylphenylboronic acid monomer has been used to prepare a trapping column based on specific ring formation reaction with dopamine cis-diol functionality. Additionally, a monolithic stationary phase with zwitterion functionality has been used to prepare capillary column for the separation of dopamine. Experimental conditions including molarity, pH, and flow rate of the loading buffer together with a valve switching time have been optimized to provide the highest recovery for dopamine. Experimental setup has been used to determine dopamine in a urine. By using both calibration curve and standard addition method, the dopamine level was determined to be 1.19 and 1.28 mg/L, respectively. Further, we have used experimental design to optimize coupling of two extraction monolithic loops to separation capillary column with monolithic phase for a comprehensive monitoring of dopamine. After multivariate analysis, sample loading flow-rate and a flow-rate of flushing buffer were selected as the most significant variables. Optimized experimental setup was applied to continuously monitor dopamine degradation.

Název v anglickém jazyce

Development of an online solid-phase extraction with liquid chromatography method based on polymer monoliths for the determination of dopamine

Popis výsledku anglicky

Porous polymer monoliths have been used to develop an online solid-phase extraction with liquid chromatography method for determination of dopamine in urine as well as for a continuous monitoring of dopamine in flowing system. A polymerization mixture containing 4-vinylphenylboronic acid monomer has been used to prepare a trapping column based on specific ring formation reaction with dopamine cis-diol functionality. Additionally, a monolithic stationary phase with zwitterion functionality has been used to prepare capillary column for the separation of dopamine. Experimental conditions including molarity, pH, and flow rate of the loading buffer together with a valve switching time have been optimized to provide the highest recovery for dopamine. Experimental setup has been used to determine dopamine in a urine. By using both calibration curve and standard addition method, the dopamine level was determined to be 1.19 and 1.28 mg/L, respectively. Further, we have used experimental design to optimize coupling of two extraction monolithic loops to separation capillary column with monolithic phase for a comprehensive monitoring of dopamine. After multivariate analysis, sample loading flow-rate and a flow-rate of flushing buffer were selected as the most significant variables. Optimized experimental setup was applied to continuously monitor dopamine degradation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

<a href="/cs/project/GA14-22426S" target="_blank" >GA14-22426S: Vývoj multifunkční monolitické kapilární kolony s integrovanou úpravou vzorku, separací a elektrochemickou detekcí</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Separation Science

ISSN

1615-9306

e-ISSN

—

Svazek periodika

39

Číslo periodika v rámci svazku

21

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

4107-4115

Kód UT WoS článku

000389046300006

EID výsledku v databázi Scopus

2-s2.0-84994472154