众所周知,碘一氟法测定铜具有准确、快速等优点。目前仍为多数化验室所采用。但是在流程中长期大量使用氟化物污染环境,有害人体健康,而且易损烧杯。随着环境科学的发展,在分析工作中考虑取代毒性较大的试剂以减轻污染日益为人们所重视。在铜的碘量法测定中,为了掩蔽铁,一些化学工作者曾经提出磷酸钠、焦磷 As we all know, iodine a fluorine method of determination of copper is accurate, fast and so on. Currently used by most laboratories. But in the long-term use of fluoride in the process of large-scale pollution of the environment, harmful to human health, and vulnerable beaker. With the development of environmental science, people pay more and more attention to the consideration of replacing toxic reagents in the analysis to reduce pollution. In the determination of copper iodometry, in order to mask iron, some chemical workers have proposed sodium phosphate, pyrophosphate