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

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^＋andLPb^2＋by square-wave anodic stripping voltammery.Undet the optimum experimental conditions， this

newly developed sensoy reveal good lineatr tesponse for Tl^＋and pb^2＋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 Pb^2＋.Using proposed method Tl^＋ and pb^2＋in environment samples were detemined with satisfactory.