총유기탄소 분석의 산화방법 비교
Comparison of Oxidation Methods in Analyzing Total Organic Carbon
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In analysis of total organic carborn (TOC), efficiency of organic oxidation is critical. There are two most well-known methods to oxidize TOC in the analysis. They are the thermo-oxidation method, and the UV-persulfate oxidation. In the thermo-oxidation method, organics in water samples is thermally oxidized to CO2 which is sequentially analyzed. In the UV-persulfate oxidation, organic material in water samples is photo-oxidized in the presence of persulfate. In this study, oxidation efficiencies of these two different methods for TOC quantification were compared by applying them to a number of water samples; some of them contained easily degradable organic carbon and some of them did hardly-degradable organic carbons. As a result, the TOC values quantified by the UV-persulfate method were about 10-20% smaller than those quantified by the thermooxidation method. When the water samples with large amount of organics were analyzed for TOC, the difference became larger.
Abstract
In analysis of total organic carborn (TOC), efficiency of organic oxidation is critical. There are two most well-known methods to oxidize TOC in the analysis. They are the thermo-oxidation method, and the UV-persulfate oxidation. In the thermo-oxidation method, organics in water samples is thermally oxidized to CO2 which is sequentially analyzed. In the UV-persulfate oxidation, organic material in water samples is photo-oxidized in the presence of persulfate. In this study, oxidation efficiencies of these two different methods for TOC quantification were compared by applying them to a number of water samples; some of them contained easily degradable organic carbon and some of them did hardly-degradable organic carbons. As a result, the TOC values quantified by the UV-persulfate method were about 10-20% smaller than those quantified by the thermooxidation method. When the water samples with large amount of organics were analyzed for TOC, the difference became larger.
참고문헌 (20)
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