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          Simultaneous Detemination of Thallium snd Lead on a Chemically Modified Electrode with Langmuir-Blodgett Film of a p-tert-Butrlcalix[4]arene Derivative

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          Abstract

          A new voltammetric Langmuir-Blodgett(LB) film of a p-tin-butylcalix[4]arene Derivative modified glassy carbon electrode ,was designed and successfully used in simultaneous determination of Ti+andLPb2+by square-wave anodic stripping voltammery.Undet the optimum experimental conditions, this

          newly developed sensoy reveal good lineatr tesponse for Tl+and pb2+in the comcentration range of 3×10-3-4×10-6molL-1 and2×10-7-2×10-5 molL-1respectively.The detect limits are 2×10-8molL-1for  Tl+and  8×10-8molL-1 for Pb2+.Using proposed method Tl+ and pb2+in environment samples were detemined with satisfactory.

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