pH試験紙におけるタンパク誤差の方向性に関する考察

• 鈴木 優治

  埼玉県立大学保健医療福祉学部健康開発学科

書誌事項

タイトル別名

• Notes on Protein Error Trend in pH Test Strips
• pH シケンシ ニ オケル タンパク ゴサ ノ ホウコウセイ ニ カンスル コウサツ

抄録

The measurement error due to protein in measuring the pH by a test strip was analyzed based on the chemical equilibrium of a protein error. The measurement error depends on the ratio of the molar absorptivities of the dissociated molecule of a pH indicator and the pH indicator-protein complex, the concentrations of a pH indicator and protein and pH; it becomes a positive error or a negative error. However, the pH at which no measurement error occurs also exists, and depends on the ratio of the molar absorptivities of the dissociated molecule of a pH indicator and the pH indicator-protein complex. This pH is higher than the pK_D value of a pH indicator in the case that this ratio is large, and is lower than it in case that this ratio is small. The measurement error increases as the protein concentration increases and the dye concentration decreases. In addition, as the pH rises, a positive error decreases and a negative error increases.

収録刊行物

• 分析化学

  分析化学 62 (2), 159-166, 2013

  公益社団法人 日本分析化学会

キーワード

• pH test strip
• pH indicator
• protein error
• measurement error

詳細情報

• CRID: 1390001204660019712
• NII論文ID: 10031139102
• NII書誌ID: AN00222633
• DOI: 10.2116/bunsekikagaku.62.159
• COI: 1:CAS:528:DC%2BC3sXjsVehtb8%3D
• NDL書誌ID: 024291936
• ISSN: 05251931
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024291936
• Web Site: https://www.jstage.jst.go.jp/article/bunsekikagaku/62/2/62_159/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可