Highly Selective Determination of Perchlorate by a Calix[4]arene based Polymeric Membrane Electrode

摘要: This article describes a versatile application of 25,27-bis-N-(N,N-diethyl-2-aminoethyl)carbonylmethoxy-26,28-dihydroxycalix[4]arene (4) as an ionophore for the preparation perchlorate ion-selective electrode. The electrode exhibits Nernstian response over concentration range 1.0×10−9 – 1.0×10−1 M with slope 59.24 ± 0.5 mV per decade concentration. limit detection determined from intersection extrapolated linear segments calibration plot is 3.04×10−9 M. shows good selectivity toward respect to many common anions. time sensor was 5–10 s and it has maximum life 2 months in acidic pH. used determine real water samples. interaction ions also demonstrated by UV–vis spectroscopy.