Research Project code：9800045555
Update date：Feb. 27, 2003
Auto analyzer of pH, EC and ionic components for rain water
1997 - 1998
Investigating Researcher (2)：
A new unit containing a pH meter and an EC (electric conductivity) detector has been made, which has been combined with as IC(ionchromatographic analyzer), thus making it possible to measure, pH, EC, anions and cations in a samples simultaneously. The introductions of the sample to this unit and to the IC are done separately, but in the same time frame. The values of pH and EC are measured before the elution of ionic components and those data are shown on the chromatograph as peaks like the ionic components. No extra time is necessary for the measurements of pH and EC. The data of pH and EC can be processed in the same way as for the ionic components. The results of analyzing the standard solution showen good agreement between the measured values and the calculated values. The ratio of total cations to the total anions was unity within 4% error.
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