Perchlorate Selective Membrane Electrode Based on Surfactant-Modified Zeolite Y Nanocluster

Surfactant modified zeolite y nano cluster was used to characterize its ability as ananion carrier in a pvc membrane electrode. the electrode showed excellent responsecharacteristics to perchlorate anion. the electrode exhibited nernstian response to clo4?anion over a wide concentration range covering the range 1.2×10-6 to 1.5×10-1 m with lowdetection limit 5.7×10?7 m and a slope of 59.6±0.8 mv per decade of perchlorateconcentration. the electrode possess fast response time, reasonable reproducibility,appropriate lifetime and, most importantly, good selectivity toward clo4? relative to a varietyof other common anions. the electrode response to perchlorate remained constant in thetemperature range of 20-45 oc and in the presence of 1.0×10-4–3.2×10-3 m nano3. thepotentiometric response of the electrodes is independent of the ph of test solution in the phrange of 2.1–10.8. the proposed sensors were used in potentiometric determination ofperchlorate ions in river and tap waters .