干渉抑制剤共存下でのAASによるCa^2＋定量に及ぼす酸添加の影響

• 谷口 無我

  東京大学大学院新領域創成科学研究科自然環境学専攻

• 穴澤 活郎

  東京大学大学院新領域創成科学研究科自然環境学専攻

書誌事項

タイトル別名

• Influence of Nitric Acid and Hydrochloric Acid on the Calcium Determination by AAS in the Presence of Interference Inhibitor
• 干渉抑制剤共存下でのAASによるCa²⁺定量に及ぼす酸添加の影響
• カンショウ ヨクセイザイ キョウゾン カ デ ノ AAS ニ ヨル Ca ² ⁺ テイリョウ ニ オヨボス サン テンカ ノ エイキョウ

抄録

Although natural water, such as river water and hot spring water can be analyzed for calcium directly by ICP-AES or ICP-MS after appropriate dilution, atomic absorption spectrophotometry (AAS) is still the major analytical method. Standard solutions or the water samples are generally acidified by hydrochloric acid for AAS, but the solutions are acidified by nitric acid for ICP-MS. Consequently, nitric acid is recently more common acid for acidification than hydrochloric acid. In the present work, calcium was determined by atomic absorption spectrophotometry in the presence of lanthanum or strontium as an interference inhibitor of silicon or aluminum. Nitric acid inhibited calcium absorption, which was evident in the presence of lanthanum or strontium. In contrast, hydrochloric acid showed only little inhibition with calcium absorption. Upon increasing the concentration of lanthanum over 2000 mg dm⁻³, in contrast with strontium, decreased the interference of calcium absorption by nitric acid.

収録刊行物

• 分析化学

  分析化学 62 (8), 701-705, 2013

  公益社団法人 日本分析化学会

キーワード

• calcium
• atomic absorption
• nitric acid
• lanthanum
• strontium

詳細情報

• CRID: 1390001204661492864
• NII論文ID: 130003362083
• NII論文ID: 10031178767
• NII書誌ID: AN00222633
• DOI: 10.2116/bunsekikagaku.62.701
• COI: 1:CAS:528:DC%2BC3sXhsVWiu7%2FI
• NDL書誌ID: 024835303
• ISSN: 05251931
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024835303
• Web Site: https://www.jstage.jst.go.jp/article/bunsekikagaku/62/8/62_701/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
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