期刊
SENSOR LETTERS
卷 9, 期 6, 页码 2261-2264出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/sl.2011.1795
关键词
Creatinine; Urea; Poly(ethylene-co-vinyl alcohol); Molecular Imprinted Polymer; Electrochemical Impedance Spectroscopy
资金
- AXELERA
In this work, sensors based on molecularly imprinted polymers (MIP) for creatinine and urea selective determination using solvent evaporation processing of poly(ethylene-co-vinyl alcohol) (EVAL) to form molecularly imprinted polymers (MIP) were fabricated. The chemical behaviour of the thin film (MIP) was characterized using FTIR spectrophotometry. The carbonyl functions assigned on the spectra confirmed capture and removal (after rinsing with ethanol) of template molecule. Electrochemical impedance method was employed as transduction technique. The EIS (Electrochemical Impedance Spectroscopy) sensor response shows a limit of detection of 10 ng/mL with linear range from 0.02 mu g/mL to 3 mu g/mL for urea and 40 ng/mL of detection limit with linear range from 0.05 mu g/mL to 2 mu g/mL for creatinine with a good specificity of detection.
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