Lead-selective electrode by using benzyl disulphide as ionophore

Add time:08/05/2019    Source:sciencedirect.com

Benzyl disulphide has been used as an ionophore and dimethylsebacate as a plasticizer in order to develop a poly(vinyl chloride)-based membrane electrode for lead ion detection. The electrode exhibits good properties with a Nernstian slope of 29.2±1.3 mV per decade and a linear range of 2×10−5–5×10−2 M for Pb(NO3)2. The response time of the electrode was 4 min and the detection limit 1×10−5 M Pb2+. The selectivity of the sensor is comparable with those reported for other such electrodes.

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