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Reference type: Journal
Authors: Mirzajani R, Bagheban M
Article Title: Simultaneous preconcentration and determination of malachite green and fuchsine dyes in seafood and environmental water samples using nano-alumina-based molecular imprinted polymer solid-phase extraction.
Publication date: 2016
Journal: International Journal of Environmental Analytical Chemistry
Volume: 96
Issue: (6)
Page numbers: 576-594.

Abstract: Molecular imprinted polymer for determination of malachite green (MG) and fuchsine basic (FU) dyes by spectrophotometry has been used, to develop a novel simultaneous extraction and preconcentration method. Molecularly imprinted layer-coated nano-alumina (MIP@Nano-Al2O3) as adsorbent was prepared by surface molecular imprinting technique, and characterised by FTIR spectroscopy, scanning electron microscopy, energy dispersive X-ray analysis (EDAX) and thermogravimetric analysis (TGA). The method is based on simultaneous extraction of MG and FU dyes from aqueous solution by using molecularly imprinted polymer and measuring the absorbance at 617 and 546 nm for MG and FU, respectively. Parameters which affect the extraction efficiency such as pH, volume of eluent and amount of adsorbent were investigated and optimised. Linear calibration curves were obtained in the range of 2-750 ng mL-1 for MG and 1-240 ng mL-1 for FU under optimum conditions. Detection limit based on three times the standard deviation of the blank (3Sb) was 0.655 and 0.245 ng mL-1 (n = 10) for MG and FU, respectively. The relative standard deviation (RSD) for 100 ng mL-1 of MG and FU was 2.35 and 3.06% (n = 7), respectively. The method was applied to the simultaneous determination of the dyes in different seafood and environmental water samples
Template and target information: malachite green, MG, fuchsine basic, FU
Author keywords: Malachite green, fuchsine, MIP@Nano-Al2O3, molecular imprinted polymer, simultaneous extraction


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