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Citation: ZHOU Chunyan, CHEN Changbao, LI Jie, SUI Hongguang, GAO Jigang, ZHOU Jie. Preparation and Characterization of Sudan Ⅰ-imprinted Surface Plasmon Resonance Sensor[J]. Chinese Journal of Applied Chemistry, ;2014, 31(9): 1107-1114. doi: 10.3724/SP.J.1095.2014.30577 shu

Preparation and Characterization of Sudan Ⅰ-imprinted Surface Plasmon Resonance Sensor

1.
College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, China

Corresponding author: GAO Jigang, ZHOU Jie,
Received Date: 15 November 2013
Available Online: 9 January 2014
Fund Project: 国家自然科学基金资助项目(21175038) (21175038)

Based on the Sudan Ⅰ-responsive shrinkage of the Sudan Ⅰ-imprinted gel film, a new imprinted gel-surface plasmon resonance(SPR) sensor for the detection of Sudan I was prepared. The Sudan I-imprinted soft gel film was synthesized on the surface of a SPR chip. The SPR sensor was characterized with an electrochemical method and swelling measurements. The method exhibits a linear response in the range of 8.0×10^-10 to 1.0×10^-8 mol/L(R²=0.9987) for the detection of Sudan Ⅰ. It was used to determine Sudan I in the paprika and salted products. The detection limits are 3.4×10^-10 mol/L and 2.5×10^-10 mol/L, respectively, and the relative standard deviations(RSD) are 1.38% and 2.10% for two paprika samples and 1.13% for the salted product. This SPR sensor shows high sensitivity and good reproducibility.
- molecularly imprinted gel film,
- surface plasmon resonance sensor,
- Sudan Ⅰ
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