A Hyphenation of Stripping Voltammetry with Electrospray Ionization Mass Spectrometry; an Effect of Sodium Perchlorate on Ferrocene Oxidation

Kód výsledku v IS VaVaI

RIV/61388963:_____/13:00393001 - isvavai.cz

Nalezeny alternativní kódy

RIV/61388955:_____/13:00393001 RIV/60460709:41210/13:59903

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A Hyphenation of Stripping Voltammetry with Electrospray Ionization Mass Spectrometry; an Effect of Sodium Perchlorate on Ferrocene Oxidation

Popis výsledku v původním jazyce

The coupling of electrospray ionization mass spectrometry (ESI-MS) with an electrochemical (EC) method is a promising technique applicable in electrochemical reaction studies as well as in other analytical fields. The connection of two-electrodes flowingEC cell prior ESI-MS is provided and tested on ferrocene/ferricene system. The base electrolyte used (a mixture of NaClO4 and HClO4) causes particular oxidation of ferrocene to ferricene. Consequently, in ESI-MS spectrum are observed two charged ferricene/ferrocene species: protonated ferrocene (Cp2Fe(II)H)(+) and ferricene (Cp2Fe(III))(+). In the on-line connection of EC with ESI-MS the ferricene species is electrochemically reduced (in accumulation step of differential pulse anodic stripping voltammetry via insertion of negative potential) to ferrocene species, which is detected as (Cp2Fe(II)H)(+) using ESI-MS. The yield of electrochemical reduction of ferricene to ferrocene is almost 30 %, whereas the inserted potential is -1000 mV.

Název v anglickém jazyce

A Hyphenation of Stripping Voltammetry with Electrospray Ionization Mass Spectrometry; an Effect of Sodium Perchlorate on Ferrocene Oxidation

Popis výsledku anglicky

The coupling of electrospray ionization mass spectrometry (ESI-MS) with an electrochemical (EC) method is a promising technique applicable in electrochemical reaction studies as well as in other analytical fields. The connection of two-electrodes flowingEC cell prior ESI-MS is provided and tested on ferrocene/ferricene system. The base electrolyte used (a mixture of NaClO4 and HClO4) causes particular oxidation of ferrocene to ferricene. Consequently, in ESI-MS spectrum are observed two charged ferricene/ferrocene species: protonated ferrocene (Cp2Fe(II)H)(+) and ferricene (Cp2Fe(III))(+). In the on-line connection of EC with ESI-MS the ferricene species is electrochemically reduced (in accumulation step of differential pulse anodic stripping voltammetry via insertion of negative potential) to ferrocene species, which is detected as (Cp2Fe(II)H)(+) using ESI-MS. The yield of electrochemical reduction of ferricene to ferrocene is almost 30 %, whereas the inserted potential is -1000 mV.

Druh

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

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

GAP206/11/1638: Nové elektrochemické senzory a detekční techniky pro analýzu struktury a interakcí nukleových kyselin

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

International Journal of Electrochemical Science

ISSN

1452-3981

e-ISSN

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Svazek periodika

8

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CS - Srbsko a Černá Hora

Počet stran výsledku

12

Strana od-do

1623-1634

Kód UT WoS článku

000316565800007

EID výsledku v databázi Scopus

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