Journal article
Rational design and application of molecularly imprinted sol–gel polymer for the electrochemically selective and sensitive determination of Sudan I
Talanta (Oxford), Vol.84(2), pp.451-456
04/15/2011
Handle:
https://hdl.handle.net/2376/107720
PMID: 21376972
Abstract
An electrochemical strategy on the basis of rationally designed molecularly imprinted sol–gel polymer embedded with gold nanoparticles (AuNPs) is developed for the specific and sensitive determination of Sudan I. The rationally designed sensing Sudan I imprinted sol–gel was prepared by mixing Sudan I with 3-aminopropyltriethoxysilane, tetraethoxysilane, chitosan, and AuNPs, followed by copolymerization and extraction of the template molecules. The hybrid forming membrane was characterized by SEM and FTIR-ATR, and used for the linear sweep voltammetric (LSV) determination of Sudan I in water/ethanol solutions. The LSV responses exhibited high sensitivity and selectivity, as discriminated from Sudan I analogues. Under optimal experimental conditions, LSV peak currents were linearly proportional to the concentrations of Sudan I in the range from 0.1×10−7 to 1.0×10−5M, with a detection limit of 2.0×10−9M. The strategy is generally applicable in developing sensitive, selective, and moreover, reusable electrochemical sensors for quantitative determination of electroactive species.
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Details
- Title
- Rational design and application of molecularly imprinted sol–gel polymer for the electrochemically selective and sensitive determination of Sudan I
- Creators
- Shizhen Chen - Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Central China Normal University, Wuhan 430079, PR ChinaDan Du - Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Central China Normal University, Wuhan 430079, PR ChinaJing Huang - Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Central China Normal University, Wuhan 430079, PR ChinaAiqing Zhang - Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commision & Ministry of Education, South-Central University for Nationalities, Wuhan 430074, PR ChinaHaiyang Tu - Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Central China Normal University, Wuhan 430079, PR ChinaAidong Zhang - Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Central China Normal University, Wuhan 430079, PR China
- Publication Details
- Talanta (Oxford), Vol.84(2), pp.451-456
- Academic Unit
- School of Mechanical and Materials Engineering
- Publisher
- Elsevier B.V
- Identifiers
- 99900547079201842
- Language
- English
- Resource Type
- Journal article