Automatic Measurement of Dissolved Inorganic Nitrogen Ions in Coastal Field using a Simplified Flow Injection Method

摘要

Recently, measurement of certain environmental factors such as dissolved oxygen and chlorophyll using electric sensors has been realized. Such measurement is continuous and automatic, and is very important for monitoring the environment in coastal areas. However, it is difficult to continuously measure the chemical parameters because data must be obtained by chemical analysis. This paper introduces a simplified measurement system using absorption rate measurement of processed water by visible rays. The effectiveness of the present method is demonstrated in field measurements in Osaka Bay.