OrangerV1, Main, Exploration, bibRecord, 000454

Sensitive determination of carbendazim in orange juice by electrode modified with hybrid material.

Identifieur interne : 000454 ( Main/Exploration ); précédent : 000453; suivant : 000455

Sensitive determination of carbendazim in orange juice by electrode modified with hybrid material.

Auteurs : Claudia A. Razzino [Brésil] ; Lívia F. Sgobbi [Brésil] ; Thiago C. Canevari [Brésil] ; Juliana Cancino [Brésil] ; Sergio A S. Machado [Brésil]

Source :

Food chemistry [ 0308-8146 ] ; 2015.

RBID : pubmed:25306358

English descriptors

KwdEn :
- Benzimidazoles (administration & dosage), Benzimidazoles (therapeutic use), Beverages, Carbamates (administration & dosage), Carbamates (therapeutic use), Citrus sinensis, Electrodes, Humans, Nanotubes, Carbon (chemistry), Oxidation-Reduction, Silicon Dioxide.
MESH :
- chemical , administration & dosage : Benzimidazoles, Carbamates.
- chemical , chemistry : Nanotubes, Carbon.
- chemical , therapeutic use : Benzimidazoles, Carbamates.
- Beverages, Citrus sinensis, Electrodes, Humans, Oxidation-Reduction, Silicon Dioxide.

Abstract

This paper describes the application of a glassy carbon electrode modified with a thin film of mesoporous silica/multiwalled carbon nanotubes for voltammetric determination of the fungicide carbendazim (CBZ). The hybrid material, (SiO2/MWCNT), was obtained by a sol-gel process using HF as the catalyst. The amperometric response to CBZ was measured at +0.73 V vs. Ag/AgCl by square wave voltammetry at pH 8.0. SiO2/MWCNT/GCE responded to CBZ in the linear range from 0.2 to 4.0 μmol L(-1). The calculated detection limit was 0.056 μmol L(-1), obtained using statistical methods. The SiO2/MWCNT/GCE sensor presented as the main characteristics high sensitivity, low detection limit and robustness, allowing CBZ determination in untreated real samples. In addition, this strategy afforded remarkable selectivity for CBZ against ascorbic and citric acid which are the main compounds of the orange juice. The excellent sensitivity and selectivity yielded feasible application for CBZ detection in orange juice sample.

DOI: 10.1016/j.foodchem.2014.08.085
PubMed: 25306358

Affiliations:

Le document en format XML

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<term>Carbamates (therapeutic use)</term>
<term>Citrus sinensis</term>
<term>Electrodes</term>
<term>Humans</term>
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<term>Carbamates</term>
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<term>Citrus sinensis</term>
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<front><div type="abstract" xml:lang="en">This paper describes the application of a glassy carbon electrode modified with a thin film of mesoporous silica/multiwalled carbon nanotubes for voltammetric determination of the fungicide carbendazim (CBZ). The hybrid material, (SiO2/MWCNT), was obtained by a sol-gel process using HF as the catalyst. The amperometric response to CBZ was measured at +0.73 V vs. Ag/AgCl by square wave voltammetry at pH 8.0. SiO2/MWCNT/GCE responded to CBZ in the linear range from 0.2 to 4.0 μmol L(-1). The calculated detection limit was 0.056 μmol L(-1), obtained using statistical methods. The SiO2/MWCNT/GCE sensor presented as the main characteristics high sensitivity, low detection limit and robustness, allowing CBZ determination in untreated real samples. In addition, this strategy afforded remarkable selectivity for CBZ against ascorbic and citric acid which are the main compounds of the orange juice. The excellent sensitivity and selectivity yielded feasible application for CBZ detection in orange juice sample.</div>
</front>
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<tree><country name="Brésil"><region name="État de São Paulo"><name sortKey="Razzino, Claudia A" sort="Razzino, Claudia A" uniqKey="Razzino C" first="Claudia A" last="Razzino">Claudia A. Razzino</name>
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<name sortKey="Cancino, Juliana" sort="Cancino, Juliana" uniqKey="Cancino J" first="Juliana" last="Cancino">Juliana Cancino</name>
<name sortKey="Canevari, Thiago C" sort="Canevari, Thiago C" uniqKey="Canevari T" first="Thiago C" last="Canevari">Thiago C. Canevari</name>
<name sortKey="Machado, Sergio A S" sort="Machado, Sergio A S" uniqKey="Machado S" first="Sergio A S" last="Machado">Sergio A S. Machado</name>
<name sortKey="Sgobbi, Livia F" sort="Sgobbi, Livia F" uniqKey="Sgobbi L" first="Lívia F" last="Sgobbi">Lívia F. Sgobbi</name>
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Sensitive determination of carbendazim in orange juice by electrode modified with hybrid material.

Sensitive determination of carbendazim in orange juice by electrode modified with hybrid material.

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki

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