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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Wang, Guang-Li Zhu, Xiao-Ying Jiao, Huan-Jun Dong, Yu-Ming Wu, Xiu-Ming Li, Zai-Jun |
| Description | Author Affiliation: Wang GL ( The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China. glwang@jiangnan.edu.cn) |
| Abstract | An innovative and versatile functional colorimetric sensor for melamine (MA) and H(2)O(2) was developed with simplicity, excellent selectivity and ultrasensitivity. The detection mechanism was based on the 'oxidative etching-aggregation' of silver nanoparticles (AgNPs) by the cooperation effect of MA and electron acceptors such as H(2)O(2), ozone or Fe(NO(3))(3). The detection limits of this method for MA could reach as low as 0.08 nM, 0.16 nM and 3 nM when H(2)O(2), ozone or Fe(NO(3))(3) was used as an electron acceptor, respectively. When using H(2)O(2) as a typical electron acceptor, the method enabled the detection of H(2)O(2) with a detection limit of 0.2 nM. This proposed method offered a new way to design MA and H(2)O(2) sensors and might be easily extended to detect other nucleophilic reagents and electron acceptors based on colorimetric sensors. |
| File Format | HTM / HTML |
| ISSN | 00032670 |
| Volume Number | 747 |
| e-ISSN | 18734324 |
| Journal | Analytica Chimica Acta |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2012-10-17 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Analytical Discipline Chemistry Colorimetry Methods Hydrogen Peroxide Analysis Metal Nanoparticles Silver Chemistry Triazines Animals Cattle Ferric Compounds Limit Of Detection Milk Nitrates Ozone Sensitivity And Specificity Water Pollutants, Chemical Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Environmental Chemistry Analytical Chemistry Biochemistry |
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