A new double-barrelled, ionophore-based microelectrode for chloride ions

  title={A new double-barrelled, ionophore-based microelectrode for chloride ions},
  author={Yoshiaki Kondo and Thomas Buehrer and Eberhard Fr{\"o}mter and Wilhelm Simon},
  journal={Pfl{\"u}gers Archiv},
A new Cl− selective microelectrode based on the ionophore 5,10,15,20-tetraphenyl-21H,23H-porphin manganese(III) chloride is presented which discriminates better against HCO 3 − and several organic anions than electrodes containing the Corning 477913 ion-eschanger. Using a redesigned construction procedure, fine-tip double-barrelled microelectrodes were produced which had slopes of −52.4±0.6 mV (SE,n=24), resistances of about 7·1011 Ω and a selectivity coefficient logK Cl, HCO3 pot of −1.40±0.03… CONTINUE READING


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