溶存有機物を測定するためのサイズ排除クロマトグラフィーに用いる溶離液の改良

抄録

The analysis of dissolved organic matter is important to characterize drinking water treatment processes. Size-exclusion chromatography is one of the analytical tools used to characterize those compounds. Phosphate eluent is often used for size-exclusion chromatography; however, the eluent may cause the occurrence of molds, which damage expensive columns. Especially after a long-time continuous measurement, the number of theoretical plates decreased. Here, we applied the sulfamate eluent to try to suppress damage to the columns. The chromatogram by the sulfamate eluent showed similar resolution with the phosphate eluent at the initial stage. Moreover, a smaller decrease was observed in the number of theoretical plates even after a long-time continuous measurement. Thus, sulfamate can be used as an alternative and better eluent than the conventional phosphate eluent in the analysis of organic matter in drinking water treatment processes.