creating knowledge for future



High Quality


Scholarly Publishing
                CAREER NETWORK  
         
World's one of the largest Research
Career Network
Benefits
  •     Academic & Industry jobs
  •     Project funding
  •     Visiting faculty positions
  •     Visiting scientist positions
  •     Invited talks
  •     and more...  
   
Register FREE  
 
 
 
 
 
  Chemical Sensors 2011, 1: 12
  Research Article
 
A coumarin derivative used as a sensing material for copper(II) ion selective electrode
  Mohammad Reza Ganjalia, Farnoush Faridbodb, Leila Safaralieea, Parviz Norouzia, Mehdi Khoobic, Abbas Shafieec  
     
a Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran
b Endocrinology and Metabolism Research Center, Tehran University of Medical Sciences, Tehran, Iran
c Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, 14176, Iran

   
  Abstract  
  Selectivity behavior of a coumarin derivative 6-bromo-3-(2-methyl-2,3-dihydrobenzo[d]thiazol-2-yl)-2H-chromen-2-one (L) was studied by UV-Vis. Spectroscopy. It was found that L is able to form a selective complex with Cu(II) in comparsion with other common metal ions. Thus, it can be used as a suitable ionophore in an ion selective electrode (ISE) for determination of Cu(II). The electrodes based on L exhibited a Nernstian slope of 28.6±0.2 mV per decade over a wide concentration range (5.0×10-6 to 1×10-2 mol L-1), with a limit of detection of 3.5×10-6 mol L-1. The electrode response time was about 15 s; they showed good reproducibility for at least 30 days. The sensor showed a good selectivity for Cu(II) ions over a wide variety of other metal ions. Finally, it was successfully used for analysis of copper content of some wastewater samples.
     
  Keywords  
  Copper sensor; Potentiometry; Ion selective electrode; PVC membrane; Coumarin compound  
     
   
   
   
   
     

  © 2016 Cognizure