Determination of anionic surfactants using newly synthesized n-dialkyl-2,2'-thiacyanine dyes

DOI IR NDL Digital Collections Web Site Web Site 25 References Open Access

Bibliographic Information

Other Title
  • シアニン系新規合成試薬を用いる陰イオン界面活性剤の定量
  • シアニンケイ シンキ ゴウセイ シヤク オ モチイル インイオン カイメン カッセイザイ ノ テイリョウ

Search this article

Description

For the spectrophotometric determination of anionic surfactants in aqueous media, cationic dyes with a 2,2'-thiacyanine skeleton were newly synthesized. Carbon numbers of 4 and 6 in the n-dialkyl chain combined at the N position of 2,2'-thiacyanine are new compounds. Fundamental information, such as the pKa values, was obtained. These two compounds and purchased diethyl- and dipropyl-2,2'-thiacyanine were examined for the spectrophotometric determination of an anionic surfactant, DBS. Of these, 3,3'-dihexyl-2,2'-thiacyanine (DHT) showed the best sensitivity. The calibration graph for DBS with DHT was linear up to 1×10−5 M, and the detection limit was 4×10−7 M. By a hydrophobic interaction, even a cationic surfactant, Zephiramine, and a nonionic surfactant, Triton X-100, could react with DHT. The ion-association constants for these surfactants with DHT were obtained.<br>

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 53 (9), 919-923, 2004

    The Japan Society for Analytical Chemistry

References(25)*help

See more

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top