Abstract
In order to remove chloride ions for CODMn measurements, silver ions are required. However, no specific chloride ion assay is required. Therefore, we investigated a methodology that was simpler and easier than those conventionally used.The linear relationship between chloride ions and electrical conductivity has been confirmed statistically.However, environmental measurement certification business operators, who handle samples of different compositions, have doubts about the linearity of the results.We report that we were able to confirm linearity by using a sample with a neutral pH range and the process water removed and determine the assay of silver ions from measurements of electrical conductivity.
