An enhanced electrochemical platform based on graphene oxide and multi-walled carbon nanotubes nanocomposite for sensitive determination of Sunset Yellow and Tartrazine.
Identifieur interne : 000341 ( Main/Exploration ); précédent : 000340; suivant : 000342An enhanced electrochemical platform based on graphene oxide and multi-walled carbon nanotubes nanocomposite for sensitive determination of Sunset Yellow and Tartrazine.
Auteurs : Xinlan Qiu [République populaire de Chine] ; Limin Lu [République populaire de Chine] ; Jing Leng [République populaire de Chine] ; Yongfang Yu [République populaire de Chine] ; Wenmin Wang [République populaire de Chine] ; Min Jiang [République populaire de Chine] ; Ling Bai [République populaire de Chine]Source :
- Food chemistry [ 0308-8146 ] ; 2016.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Azo Compounds, Tartrazine.
- analysis : Fruit and Vegetable Juices.
- chemical , chemistry : Graphite, Nanocomposites, Nanotubes, Carbon.
- Citrus sinensis, Electrochemical Techniques, Hydrogen-Ion Concentration, Microscopy, Electrochemical, Scanning.
Abstract
A novel electrochemical platform was designed for the simultaneous determination of Sunset Yellow (SY) and Tartrazine (TT), synthetic food dyes, by combining the signal amplification properties of graphene oxide (GO) and the excellent electronic and antifouling properties of multi-walled carbon nanotubes (MWCNTs). Stable dispersion of GO/MWCNTs composite was produced by sonication mixing. Compared with glassy carbon, MWCNTs and GO electrodes, GO/MWCNTs electrode exhibited strong enhancement effect and greatly increased the oxidation signal of SY and TT. Under optimized conditions, the enhanced anodic peak currents represented the excellent analytical performance of simultaneous detection of SY and TT in the range of 0.09-8.0 μM, with a low limit of detection of 0.025 μM for SY and 0.01 μM for TT (S/N = 3), respectively. To further validate its possible application, the proposed method was successfully used for the determination of SY and TT in orange juice with satisfactory results.
DOI: 10.1016/j.foodchem.2015.06.045
PubMed: 26213053
Affiliations:
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Stable dispersion of GO/MWCNTs composite was produced by sonication mixing. Compared with glassy carbon, MWCNTs and GO electrodes, GO/MWCNTs electrode exhibited strong enhancement effect and greatly increased the oxidation signal of SY and TT. Under optimized conditions, the enhanced anodic peak currents represented the excellent analytical performance of simultaneous detection of SY and TT in the range of 0.09-8.0 μM, with a low limit of detection of 0.025 μM for SY and 0.01 μM for TT (S/N = 3), respectively. To further validate its possible application, the proposed method was successfully used for the determination of SY and TT in orange juice with satisfactory results.</div></front></TEI><affiliations><list><country><li>République populaire de Chine</li></country><region><li>Jiangxi</li></region><settlement><li>Nanchang</li></settlement></list><tree><country name="République populaire de Chine"><region name="Jiangxi"><name sortKey="Qiu, Xinlan" sort="Qiu, Xinlan" uniqKey="Qiu X" first="Xinlan" last="Qiu">Xinlan Qiu</name></region><name sortKey="Bai, Ling" sort="Bai, Ling" uniqKey="Bai L" first="Ling" last="Bai">Ling Bai</name><name sortKey="Jiang, Min" sort="Jiang, Min" uniqKey="Jiang M" first="Min" last="Jiang">Min Jiang</name><name sortKey="Leng, Jing" sort="Leng, Jing" uniqKey="Leng J" first="Jing" last="Leng">Jing Leng</name><name sortKey="Lu, Limin" sort="Lu, Limin" uniqKey="Lu L" first="Limin" last="Lu">Limin Lu</name><name sortKey="Wang, Wenmin" sort="Wang, Wenmin" uniqKey="Wang W" first="Wenmin" last="Wang">Wenmin Wang</name><name sortKey="Yu, Yongfang" sort="Yu, Yongfang" uniqKey="Yu Y" first="Yongfang" last="Yu">Yongfang Yu</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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