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Journal of Macromolecular Science, Part A
Pure and Applied Chemistry
Volume 45, 2008 - Issue 12
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Original Articles

Exploration of Pb2+ Selective Behavior of Calix[6]arene Ester Derivative

Imam Bakhsh Solangi National Center of Excellence in Analytical Chemistry, University of Sindh, Dedicated to the honorable Professor Dr. Mustafa Yilmaz in recognition of his outstanding contributions to the area of calixarene chemistry, Jamshoro, 76080, Pakistan
,
Shahabuddin Memon National Center of Excellence in Analytical Chemistry, University of Sindh, Dedicated to the honorable Professor Dr. Mustafa Yilmaz in recognition of his outstanding contributions to the area of calixarene chemistry, Jamshoro, 76080, Pakistan
,
Najma Memon National Center of Excellence in Analytical Chemistry, University of Sindh, Dedicated to the honorable Professor Dr. Mustafa Yilmaz in recognition of his outstanding contributions to the area of calixarene chemistry, Jamshoro, 76080, Pakistan
&
M. I. Bhanger National Center of Excellence in Analytical Chemistry, University of Sindh, Dedicated to the honorable Professor Dr. Mustafa Yilmaz in recognition of his outstanding contributions to the area of calixarene chemistry, Jamshoro, 76080, Pakistan
Pages 1003-1008 | Received 01 May 2008, Accepted 01 Jun 2008, Published online: 18 Nov 2008
 
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Abstract

The selective behavior of calix[n]arene ester derivatives in two-phase extraction systems using polarographic technique has been investigated. Calix[4]arene tetraester derivative shows remarkable Na+ over Pb2+ selectivity; whereas calix[6]arene hexaester derivative shows Pb2+ over Na+ selectivity. The interference of some selected cations (Na+, K+, Cu2+ and Mg2+) were also examined and no significant effect on the selectivity behavior as well as extraction ability of these ionophores was found except Na+. The study reveals for the first time that the calix[6]arene hexaester derivative is highly Pb2+ selective ionophore and can be employed in the field of sensor as well as separation science and technology. The work also highlights the usefulness of polarographic technique in trace metal determination.

Acknowledgment

We thank the Higher Education Commission (Grant Number 20-713/R&D/06) Islamabad for the financial support of this work.

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