Analysis of Organic Pollutants in Water by High-Performance Liquid Chromatography with a Swept-Potential Electrochemical Detector

摘要

A new electrochemical detector was investigated for high-performance liquid chromatographic analysis of water for three classes of organic pollutants: carbamate pesticides, 2,4-dinitroaniline herbicides, and triazine pesticides. The detector is a computer-controlled device capable of being programmed to operate in many modes. Rapid-sweep square-wave voltammetry, the preferred mode of operation where applicable, was applied successfully to the triazine pesticides. For these compounds, the detector is more sensitive than a uv detector, and the swept mode of operation is useful in resolving components not separated completely by the chromatographic column.