Development of High Sensitivity Analyses Method of Trace Amounts of Iron by Use of a Digital Camera as the Detector

Abstract

To develop the content of water analyses on the school training, the colorimetric analysis method that used the digital camera for the detector was examined. It is easy also in a dilute coloring solution to do a high sensitivity measurement by using long optical path in the digital camera measurement. Using this fact, we established the convenient and high sensitivity method for the determination of trace amounts of iron at ppb level. This method was applied to the determination of iron in familiar river water and a good result was obtained. Use of this method is expected as the teaching material that promotes student's interests in natural water and science measurement.