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.