Flow injection spectrophotometric determination of anionic polyelectrolytes using the cationic dyes

研究成果: Article査読

12 被引用数 (Scopus)

抄録

The reaction of the cationic dye, crystal violet (CV) with the anionic polyelectrolytes such as potassium poly (vinyl sulfate) (PVSK) results in a decrease of the absorbance of CV at the maximum absorption wavelength (590 nm). This change of the absorption spectra of the CV was applied to the determination of anionic polyelectrolytes using flow injection analysis (FIA) method. Anionic polyelectrolytes such as PVSK and carageenan could be determined in the concentration range from 5 × 10-7 to 2 × 10-5-mol/l by the proposed method. The detection limit was ca. 1 × 10-7M for PVSK. The sampling rate was ca. 25 samples h-1. The coexistence of foreign ions (Na+, Cl-, Br-, K+, SO2-,4, NO-3) at 200 times excess to an anionic polyelectrolyte did not interfere with the determination of the anionic polyelectrolyte.

本文言語English
ページ(範囲)2711-2719
ページ数9
ジャーナルAnalytical Letters
34
15
DOI
出版ステータスPublished - 2001
外部発表はい

ASJC Scopus subject areas

  • 分析化学
  • 生化学
  • 分光学
  • 臨床生化学
  • 生化学、医学
  • 電気化学

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