一、概述随着石油化学工业的飞速发展,工业废水的排放量相应增加,水体污染程度日益严重。在工业废水中,含碳的有机物废水占有很大比重。这类废水成份复杂,浓度不一,如果采用逐一分离分析的方法,则因技术复杂,操作时间长,投资较大,难以满足监测工作的急需。为了提高水质监测工作的效率,目前除了使BOD_5(生化需氧量)及 COD(化学需氧量)法仪器化外,又提出了 TOC(总有机碳量) I. Overview With the rapid development of petrochemical industry, a corresponding increase in emissions of industrial wastewater, water pollution is increasingly serious. In industrial wastewater, carbon-containing organic wastewater accounts for a large proportion. The composition of such wastewater is complex and the concentration is different. If one by one method of separation and analysis is used, it is difficult to meet the urgent need of monitoring due to complicated technology, long operation time and large investment. In order to improve the efficiency of water quality monitoring, in addition to BOD_5 (chemical oxygen demand) and COD (chemical oxygen demand) method of instrumentation, but also put forward TOC (total organic carbon)