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Bibliographic Record
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- Material Type
- 文書・図像類
- Author/Editor
- 児玉谷, 仁
- Author Heading
- Publication, Distribution, etc.
- Alternative Title
- Determination of n-Nitrosamines at sub-ppt levels in tap water
- Text Language Code
- jpn
- Target Audience
- 一般
- Note (General)
- 2011-2013年度科学研究費助成事業（若手研究（B））研究成果報告書 課題番号：23760506 研究代表者：児玉谷仁（鹿児島大学・理工学研究科・助教）近年、強い発がん性を持つとされるN-nitrosodimethylamine (NDMA) が、浄水処理過程において生成することが報告され新たな問題となっている。本研究では、報告者らが開発した高速液体クロマトグラフィー―オンライン紫外線照射―化学発光検出法を利用し、sub-pptレベルのNDMAを迅速に測定できる分析システムを確立し、日本の水道水におけるNDMAの存在状況とその挙動の一端を明らかにすることを目的に進めてきた。結果として、非常に簡易な前処理でsub-pptのNDMAを迅速に測定することができる測定法が確立された。そして、この分析法を利用した長期的なモニタリングを進め一定の知見を得た。In recent years, N-nitrosodimethylamine (NDMA) which are potent mutagenic and care inogenic compound in humans has been obtained as the byproducts of chlorine disinfection in drinking water supplies. Therefore, a sensitive and simple method for monitoring NDMA in tap water is urgently required. Recently, I developed a novel ultra-sensitive determination method for nitrosamines. This method is based on online UV irradiation after high-performance liquid chromatographic separation and subsequent luminol chemiluminescence detection. In this study, I proposed a simple preparation procedure for measurement of NDMA in tap water. Furthermore, the developed method was used to monitor NDMA concentration in tap water. As the result, the seasonal change of concentration of NDMA in tap water was confirmed.