No abstract

A glassy carbon electrode modified with an open-chain crown ether, 1,11-bis(8-quinolyloxy)-3,6,9-trioxaundecane (BQT), using a spin coating method, has been applied for the highly selective and sensitive analysis of trace amounts of Hg II . The modified electrode Hg II ion was spontaneously deposited on the modified electrode and the resulting surfaces were characterized by anodic stripping voltammetry. The linear sweep voltammogram of the modified electrode deposited with Hg II ion shows a well-defined anodic peak at þ0.17 V.