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Reference type: Journal
Authors: Harsini M, Suyanto, Pari G, Mandasari E
Article Title: Melamine selective electrode based on nanoporous carbon/molecularly imprinted polymer.
Publication date: 2014
Journal: Journal of Chemical and Pharmaceutical Research
Volume: 6
Issue: (9)
Page numbers: 65-70.
Alternative URL: http://www.jocpr.com/articles/melamine-selective-electrode-based-on-nanoporous-carbonmolecularlyimprinted-polymer.pdf

Abstract: Potentiometric sensor of melamine based on nanoporous carbon/molecularly imprinted polymer (MIP) have been made and characterized. The purpose of research are to know the optimum conditions in the analysis of melamine and validation method. Molecularly Imprinted Polymer (MIP) is synthesized by mixing 0,2 mmol of melamine as a template, 0,8 mmol of methacrylic acid as monomer, 2,4 mmol of ethylen glycol dimethacrylate as crosslinker end 1 mmol benzoyl peroxide as initiator. Electrode is made by mixing nanoporous carbon, MIP and paraffin in the ratio of 45:20:35. From this research it is obtained optimum pH of melamine solution is 3,0-4,0, the Nernst factor is 54 mV/decade and range of measurement is 10-6M10-2M. The limit of detection that can be measured by nanoporous carbon/MIP is 8,86x10-7 M.. The selectivity coefficient of electrode for Na+, K+, Ca2+ end Mg2+ ions are 2,904 x 10-6, 6,072 x 10-8, 2,632 x 10-9, and 2,566 x 10-9 which means that the ion do not interfere in measurement. This electrodes coefficient is variated it is 1,06% for concentration 10-2M and 2,34% for concentration 10-4M while % recovery is 104,35% for concentration 10-4M.
Template and target information: melamine
Author keywords: Melamine, molecularly imprinted polymer, Potentiometry, NANOPOROUS CARBON


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