Fabrication of Molecularly Imprinted Electrochemiluminescence Sensor and Its Application in Heroin Detection
10.3724/SP.J.1096.2014.30771
- VernacularTitle:电化学发光-分子印迹传感器的制备及其在海洛因检测中的应用
- Author:
Zheyi SHANG
;
Chaofeng HAN
;
Qijun SONG
- Publication Type:Journal Article
- Keywords:
Heroin;
electrochemiluminescence;
Molecularly imprinted;
Sol-gel;
Sensor
- From:
Chinese Journal of Analytical Chemistry
2014;(6):904-908
- CountryChina
- Language:Chinese
-
Abstract:
An electrochemiluminescence (ECL) sensor with molecularly imprinted polymer (MIP) film was prepared for the determination of heroin. The sensor was prepared by re-modifying the molecular imprinting membrane onto the Ru ( bpy ) 2+3 modified glassy carbon electrode. The electrochemical and electrochemiluminescence behavior of the sensor was investigated. The proposed sensor displayed high sensitivity and excellent selectivity for the target molecule heroin. Under the optimum conditions (0. 1 mol/ L PBS (pH 7. 0) at a scan rates of 100 mV/ s and incubation time of 5 min), a linear response was observed with the concentrations of heroin from 1. 0 × 10-14 mol/ L to 1. 0 ×10-10 mol/ L and the detection limit was 4. 0 × 10-15 mol/ L. The sensor was successfully applied to the determination of heroin in urineand saliva samples with the recoveries from 97% to 104% .
