基于石墨炉原子吸收法的河流中重金属含量检测方法

Determination of Heavy Metals in Rivers Based on Graphite Furnace Atomic Absorption Method

重金属污染是指由重金属包括铅、镉和汞等有毒、有害元素造成的环境污染,重金属污染主要表现在水污染中。这些有毒、有害元素对生物有一定的毒害,且其浓度和危害程度比其他任何种类物质造成的污染都要严重。随着经济发展以及人类对环境质量要求的不断提高,越来越多的国家开始关注工业生产中存在的重金属污染问题,并且有相关研究人员提出了一些减少其含量的方法,但都不能有效解决这个问题。本文介绍了基于石墨炉原子吸收法的河流重金属检测方法,并详细说明其原理和实验过程,以及测量所用仪器和设备。

Heavy metal pollution refers to the water containing many kinds of elements,including lead,cadmium,mercury and other toxic and harmful substances,and these elements have certain toxicity to living organisms.Heavy metal pollution of water refers to the water containing various toxic and harmful substances,and its concentration and harm degree are more serious than any other kind.With the development of economy and the continuous improvement of human requirements for environmental quality,more and more countries have begun to pay attention to the problem of heavy metal pollution in industrial production,and some relevant researchers have put forward some methods to reduce the content of heavy metal,but none of them can effectively solve this problem.This paper introduces the method of heavy metal detection in rivers based on graphite furnace atomic absorption method,and explains its principle,experimental process and measuring instruments and equipment in detail.