Authors: Li J
, Chen CB
, Zhang LL
, Zhou J
Preparation of Surface Plasmon Resonance Sensor Based on Malachite Green Molecularly Imprinted Polymer and Its Analytical Application.
Publication date: 2014
Journal: Journal of Analytical Science
DOI: In this paper, a new SPR sensor for the detection of malachite green was prepared by combining the molecularly imprinted technique with surface plasmon resonance spectroscopy. The surface topography of the imprinted SPR sensor was undertaken by atomic force microscopy. The effect of pH value on the adsorption of the imprinted membrane was investigated. Meanwhile, we also evaluated the properties of its adsorptivity and selectivity at the optimal pH. Compared to the non-imprinted film, the imprinted film showed higher adsorption efficiency and selectivity for malachite green. The method showed good linearity between 8.0 x 10-10 and 1.0 x 10-8 mol/L. When the developed method was used to determine malachite green in the river water and river mud, the detection limits were 8.82 x 10-11 mol/L and 1.55 x 10-10 mol/L based on a signal to noise ratio of 3. The mean recoveries were 91.97% and 93.88%, and the relative standard deviations (RSD) obtained were 1.2% and 2.1%, respectively. The results indicated that the developed SPR sensor for the detection of malachite green possessed the advantages such as simplicity, high-speed, high sensitivity and good recovery.
Alternative URL: http://en.cnki.com.cn/Article_en/CJFDTotal-FXKX201406020.htm
Template and target information: malachite green, MG
Author keywords: Molecularly imprinted film, surface plasmon resonance, sensor, Malachite green
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