Undistorted Cyclic Voltammograms at Scan Rates up to 2.5 MV·s-1 through Positive Feedback Compensation of Ohmic Drop

• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2004,（9）
• 页码范围: 913-919
• 页数: 7页
• 语种: 英文

摘要

A circuit based on the current feedback operational amplifier was constructed to accomplish on-line ohmic drop compensation in ultrafast cyclic voltammetry. Firstly, its characteristics were confirmed experimentally on dummy cells. Then the reduction of anthracene in acetonitrile, a classical test example with very fast electron-tratnsfer kinetics, was examined to prove them too. The results showed that this circuit could afford excellent ohmic drop if 5% error is tolerated.