Interference of High Degrees Salt on Spectrophotometric Flow Injection Analysis ‒Quantitative Error of Nitrite from Schlieren Effect and Salt Effect‒

DOI IR Web Site Open Access
  • Shichijo Maria
    Faculty of Pharmaceutical Sciences, Tokushima University
  • Niki Ryosuke
    Faculty of Pharmaceutical Sciences, Tokushima University
  • Ohira Shin-ichi
    Department of Chemistry, Kumamoto University
  • Mizuguchi Hitoshi
    Graduate School of Science and Technology, Tokushima University
  • Tanaka Hideji
    Faculty of Pharmaceutical Sciences, Tokushima University Graduate School of Biomedical Sciences, Tokushima University
  • Takeuchi Masaki
    Faculty of Pharmaceutical Sciences, Tokushima University Graduate School of Biomedical Sciences, Tokushima University

Bibliographic Information

Other Title
  • フローインジェクション吸光光度法における高濃度塩の干渉 −シュリーレン効果及び塩効果に よる亜硝酸イオンの定量誤差
  • フローインジェクション吸光光度法における高濃度塩の干渉 : シュリーレン効果及び塩効果による亜硝酸イオンの定量誤差
  • フローインジェクション キュウコウ コウドホウ ニ オケル コウノウドエン ノ カンショウ : シュリーレン コウカ オヨビ エン コウカ ニ ヨル アショウサン イオン ノ テイリョウ ゴサ

Search this article

Description

Interference of high salt concentrations in spectrophotometric flow injection analysis is described. The spectrophotometric determination of nitrite with Griess reagent was used as a test model. Several percentage concentrations of sodium chloride, magnesium chloride, or magnesium sulfate solutions caused more than 10% positive interference in determining 0.040 mg L-1 nitrite. This interference was attributed not only to the schlieren effect but to the salt effect, i.e., the accelerated reaction of nitrite with the Griess reagent.

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top