Author/Authors :
Alizadeh، Taher نويسنده Department of Applied Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran , , Akhondian، Maedeh نويسنده Department of Applied Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran , , Movahed، Zohreh نويسنده Department of Applied Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran ,
Abstract :
A molecularly imprinted polymer material having urea molecule selective
cavities was prepared. It was shown that the MIP had a considerable selectivity for urea
in comparison to similar compounds such as thiourea. The obtained polymer was used
as an adsorber for solid phase extraction (SPE) of urea from aqueous samples. The
polymer containing urea was then washed with water/ethanol mixture and subsequently
it was contacted with free chorine solution. Cl- ions, produced by reaction of
hypochlorite and urea, was determined via a Cl- selective electrode. Some different
parameters of SPE were optimized and the developed procedure was used for urea
determination in real sample.
