Phospholipids improve selectivity and sensitivity of carbon electrodes: Determination of pesticide Paraquat

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F14%3A33151651" target="_blank" >RIV/61989592:15310/14:33151651 - isvavai.cz</a>

Výsledek na webu

<a href="http://onlinelibrary.wiley.com/doi/10.1002/ejlt.201300389/pdf" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1002/ejlt.201300389/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/ejlt.201300389" target="_blank" >10.1002/ejlt.201300389</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Phospholipids improve selectivity and sensitivity of carbon electrodes: Determination of pesticide Paraquat

Popis výsledku v původním jazyce

Cyclic voltammetry and AC impedance spectroscopy were used for the investigation of properties and permeability of asolectin phospholipid layer and its influence on the voltammetric response of carbon electrodes. Permeability of the layer was tested using two electrochemically active compounds - paraquat as an example of lipophilic pesticide and copper sulphate as an example of hydrophilic substance. The phospholipid layer has suppressed the current response of copper ions effectively even in their large excess to paraquat. By contrast, the current response of lipophilic substance paraquat was almost unaffected by the phospholipid layer. As a result, the slope of calibration straightline for the copper ions was 14-times lower at the modified electrodethan at bare electrode. On the contrary, the slope of calibration curve for paraquat was almost the same at modified electrode compared to bare electrode. Unmodified (CPE) and phospholipid modified (LMCPE) carbon paste electrode were appl

Název v anglickém jazyce

Phospholipids improve selectivity and sensitivity of carbon electrodes: Determination of pesticide Paraquat

Popis výsledku anglicky

Cyclic voltammetry and AC impedance spectroscopy were used for the investigation of properties and permeability of asolectin phospholipid layer and its influence on the voltammetric response of carbon electrodes. Permeability of the layer was tested using two electrochemically active compounds - paraquat as an example of lipophilic pesticide and copper sulphate as an example of hydrophilic substance. The phospholipid layer has suppressed the current response of copper ions effectively even in their large excess to paraquat. By contrast, the current response of lipophilic substance paraquat was almost unaffected by the phospholipid layer. As a result, the slope of calibration straightline for the copper ions was 14-times lower at the modified electrodethan at bare electrode. On the contrary, the slope of calibration curve for paraquat was almost the same at modified electrode compared to bare electrode. Unmodified (CPE) and phospholipid modified (LMCPE) carbon paste electrode were appl

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

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)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

European Journal of Lipid Science and Technology

ISSN

1438-7697

e-ISSN

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Svazek periodika

116

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

1247-1255

Kód UT WoS článku

000343000600017

EID výsledku v databázi Scopus

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