Contamination, Decomposition, and Formation of N-Nitrosodimethyl-amine in Water Samples at the ng/L Level of Determination

• KODAMATANI Hitoshi

  Division of Earth and Environmental Science, Graduate School of Science and Engineering, Kagoshima University

• SUGIHARA Kenta

  Division of Earth and Environmental Science, Graduate School of Science and Engineering, Kagoshima University

• TANISUE Taketo

  Division of Earth and Environmental Science, Graduate School of Science and Engineering, Kagoshima University

• KANZAKI Ryo

  Division of Earth and Environmental Science, Graduate School of Science and Engineering, Kagoshima University

• TOMIYASU Takashi

  Division of Earth and Environmental Science, Graduate School of Science and Engineering, Kagoshima University

書誌事項

タイトル別名

• Contamination, Decomposition, and Formation of <i>N</i>-Nitrosodimethylamine in Water Samples at the ng/L Level of Determination

抄録

An ultra-sensitive analytical system that can determine the concentration of N-nitrosamines at the ng/L level without preconcentration was used to investigate the contamination, decomposition, and formation of N-nitrosodimethylamine (NDMA) and other N-nitrosamines in water samples during general analytical procedures. A preliminary experiment was performed to estimate the NDMA concentrations in ambient air. Since the air samples contained NDMA at concentrations in the range of 2.0 – 10.7 ng/m³, ambient air was identified as the source of NDMA contamination in water samples. We directly confirmed that the concentration of aqueous 10-ng/L NDMA samples stored in clear glass bottles decreased upon exposure to sunlight. Thus, to maintain the N-nitrosamine concentration, such samples must always be protected from sunlight during sampling. The existence of N-nitrosamines in experimental reagents, such as ranitidine and sodium hypochlorite solutions, was also confirmed, as was the formation of NDMA on an activated carbon solid-phase extraction cartridge.

収録刊行物

• Analytical Sciences

  Analytical Sciences 36 (11), 1393-1399, 2020-11-10

  社団法人 日本分析化学会

キーワード

• <i>N</i>-Nitrosodimethylamine (NDMA)
• air
• sunlight
• reagent
• contamination
• decomposition
• formation

詳細情報

• CRID: 1391130851443334016
• NII論文ID: 130007937681
• NII書誌ID: AA10500785
• DOI: 10.2116/analsci.20p162
• ISSN: 13482246
• ISSN: 09106340
• NDL書誌ID: 031199272
• PubMed: 32713901
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I031199272
• Web Site: https://link.springer.com/content/pdf/10.2116/analsci.20P162.pdf
• Web Site: https://link.springer.com/article/10.2116/analsci.20P162/fulltext.html
• Web Site: https://www.jstage.jst.go.jp/article/analsci/36/11/36_20P162/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • PubMed
  • CiNii Articles
  • KAKEN
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