Lead-selective PVC membrane electrodes based on bis(crown ether)s

Kum Chul Oh, Eun Chul Kang, Kyu Sung Jeong, Ki Jung Paeng

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4 Citations (Scopus)


Lead-selective PVC membrane electrodes based on newly synthesized bis(crown ether)s containing 18-crown-6 moiety was prepared using standard PVC membrane composition. In order to monitor lead in environmental samples by lead sensor, especially good selectivity over alkali and alkaline earth metals has to be obtained. Thus, responses of the PVC membrane prepared with new bis(crown ether)s and Fluka ionophore V (crown ether) base to various cations include lead, alkali and alkaline earth metal ions were investigated for their use as a lead sensor. The polymeric liquid membrane based on trans- 18-crown-6 ether exhibits the best overall potentiometric performances as a lead-selective electrode in terms of a wide linear dynamic range (between 10-6 and 10-2 M, Pb2+), excellent detection limit (less than 10-6 M) and good durability within limited error. The preferences of lead over other cations, such as Ag+, Hg2+, Na+, Ca2+ and even K+ in the aforementioned electrode are much better than the Fluka ionophore V system.

Original languageEnglish
Pages (from-to)556-558
Number of pages3
JournalBulletin of the Korean Chemical Society
Issue number5
Publication statusPublished - 1999 May 20

All Science Journal Classification (ASJC) codes

  • Chemistry(all)


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