A novel sensor based on Fe3O4 nanoparticles–multiwalled carbon nanotubes composite film for determination of nitrite
A novel nitrite sensor was constructed via electropolymerization of l-cysteine on the multiwalled carbon nanotubes and then immobilization of cationic poly(diallyldimethylammonium chloride) coated Fe3O4 nanoparticles through electrostatic interaction at glassy carbon matrix. Under the optimized cond...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2015-03-01
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| Series: | Sensing and Bio-Sensing Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214180414000336 |
| _version_ | 1811211709667344384 |
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| author | Jianying Qu Ying Dong Yong Wang Huanhuan Xing |
| author_facet | Jianying Qu Ying Dong Yong Wang Huanhuan Xing |
| author_sort | Jianying Qu |
| collection | DOAJ |
| description | A novel nitrite sensor was constructed via electropolymerization of l-cysteine on the multiwalled carbon nanotubes and then immobilization of cationic poly(diallyldimethylammonium chloride) coated Fe3O4 nanoparticles through electrostatic interaction at glassy carbon matrix. Under the optimized conditions, the obtained sensor exhibited good electrocatalytic activity for the oxidation of nitrite, and the peak current of nitrite increased linearly with its concentration from 7.49 × 10−6 to 3.33 × 10−3 mol/L (R = 0.9998) with the detection limit of 8.46 × 10−7 mol/L (S/N = 3). Moreover, the sensor exhibited good sensitivity, stability and repeatability with potential applications. |
| first_indexed | 2024-04-12T05:17:56Z |
| format | Article |
| id | doaj.art-3b8eb5fedb794528b2cad26f45f4ccb2 |
| institution | Directory Open Access Journal |
| issn | 2214-1804 |
| language | English |
| last_indexed | 2024-04-12T05:17:56Z |
| publishDate | 2015-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Sensing and Bio-Sensing Research |
| spelling | doaj.art-3b8eb5fedb794528b2cad26f45f4ccb22022-12-22T03:46:35ZengElsevierSensing and Bio-Sensing Research2214-18042015-03-013C747810.1016/j.sbsr.2014.10.009A novel sensor based on Fe3O4 nanoparticles–multiwalled carbon nanotubes composite film for determination of nitriteJianying QuYing DongYong WangHuanhuan XingA novel nitrite sensor was constructed via electropolymerization of l-cysteine on the multiwalled carbon nanotubes and then immobilization of cationic poly(diallyldimethylammonium chloride) coated Fe3O4 nanoparticles through electrostatic interaction at glassy carbon matrix. Under the optimized conditions, the obtained sensor exhibited good electrocatalytic activity for the oxidation of nitrite, and the peak current of nitrite increased linearly with its concentration from 7.49 × 10−6 to 3.33 × 10−3 mol/L (R = 0.9998) with the detection limit of 8.46 × 10−7 mol/L (S/N = 3). Moreover, the sensor exhibited good sensitivity, stability and repeatability with potential applications.http://www.sciencedirect.com/science/article/pii/S2214180414000336Fe3O4 nanoparticlesMultiwalled carbon nanotubesNitrite |
| spellingShingle | Jianying Qu Ying Dong Yong Wang Huanhuan Xing A novel sensor based on Fe3O4 nanoparticles–multiwalled carbon nanotubes composite film for determination of nitrite Sensing and Bio-Sensing Research Fe3O4 nanoparticles Multiwalled carbon nanotubes Nitrite |
| title | A novel sensor based on Fe3O4 nanoparticles–multiwalled carbon nanotubes composite film for determination of nitrite |
| title_full | A novel sensor based on Fe3O4 nanoparticles–multiwalled carbon nanotubes composite film for determination of nitrite |
| title_fullStr | A novel sensor based on Fe3O4 nanoparticles–multiwalled carbon nanotubes composite film for determination of nitrite |
| title_full_unstemmed | A novel sensor based on Fe3O4 nanoparticles–multiwalled carbon nanotubes composite film for determination of nitrite |
| title_short | A novel sensor based on Fe3O4 nanoparticles–multiwalled carbon nanotubes composite film for determination of nitrite |
| title_sort | novel sensor based on fe3o4 nanoparticles multiwalled carbon nanotubes composite film for determination of nitrite |
| topic | Fe3O4 nanoparticles Multiwalled carbon nanotubes Nitrite |
| url | http://www.sciencedirect.com/science/article/pii/S2214180414000336 |
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