LEAD-SELECTIVE MEMBRANE POTENTIOMETRIC SENSOR-BASED ON A RECENTLY SYNTHESIZED BIS(ANTHRAQUINONE) SULFIDE DERIVATIVE

Authors
POURETEDAL HR FORGHANIHA A SHARGHI H SHAMSIPUR M
Citation
Hr. Pouretedal et al., LEAD-SELECTIVE MEMBRANE POTENTIOMETRIC SENSOR-BASED ON A RECENTLY SYNTHESIZED BIS(ANTHRAQUINONE) SULFIDE DERIVATIVE, Analytical letters, 31(15), 1998, pp. 2591-2605
Citations number
36
Categorie Soggetti
Chemistry Analytical
Journal title
Analytical letters → ACNP
ISSN journal
00032719
Volume
31
Issue
15
Year of publication
1998
Pages
2591 - 2605
Database
ISI
SICI code
0003-2719(1998)31:15<2591:LMPSOA>2.0.ZU;2-N
Abstract
A new PVC membrane electrode for lead ions, based on is[(1-hydroxy-9,1 0-anthraquinone)-2-methyl]sulfide as membrane carrier, was prepared. T he sensor exhibits a Nernstian response for Pb2+ over a wide concentra tion range (5.6 x 10(-3)-4.0 x 10(-6) M). It has a response time of ab out 30 s and can be used for at least 3 months without any divergence in potentials. The proposed membrane sensor revealed good selectivitie s for Pb2+ over a wide variety of other metal ions. It was used as an indicator electrode in potentiometric titration of lead ion.