The online automatic total copper analyzer is an optical method heavy metal online analyzer designed according to national environmental protection standards. It is applied to the simultaneous online analysis of various heavy metal elements in surface water, industrial process water and industrial wastewater. The measured heavy metal elements include environmental protection. The first and second categories of heavy metal prevention and control projects in the 12th Five-Year Plan for Comprehensive Prevention and Control of Heavy Metal Pollution.

Working Principle
Total copper was measured by sodium diethyldithiocarbamate spectrophotometry. Under high temperature, various copper compounds in water samples were digested by nitric acid to become positive divalent copper ions. Under ammonia conditions, copper ions The complex reaction with sodium diethyldithiocarbamate produces a yellow-brown complex. In a certain concentration range, the absorbance of the system is directly proportional to the concentration of copper ions, that is, the total copper content in the water sample can be determined according to the spectrophotometry.