| 摘要 |
PROBLEM TO BE SOLVED: To provide an ion concentration measuring apparatus by ion chromatogram that can simply measure only ion species having high measurement frequency and can be miniaturized and integrated. SOLUTION: A liquid dispense pump 2, an injector 4, a data processor, and the like are incorporated into one housing along with a column 5 and a detector 6, and a plurality of ion species and its elution pattern are stored at a memory section 16 as a measurement mode in advance. When a specific measurement mode is selected and calibration operation is made, the elution time of each ion and a peak area are automatically calibrated and set. Then, when a sample liquid 12 is injected, the concentration of each ion species can be obtained automatically. In calibration, it is possible to equip the function of adjusting flow rate so that the elution time of ions that becomes the last peak can stay within a fixed time. COPYRIGHT: (C)2004,JPO&NCIPI
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