Optical sensor of anionic surfactants using solid-phase extraction with a lactone-form rhodamine B membrane

Takashi Masadome, Motoo Akatsu

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

An optical sensor for the detection of anionic surfactants was developed. The optical sensing membrane is a 2-nitrophenyloctyl ether-plasticized poly(vinyl chloride) membrane incorporating a lactone-form Rhodamine B (L-RB). The response of the optical membrane to anionic surfactants was a result of the ion-pair coextraction of an anionic surfactant and a proton into the PVC membrane. The L-RB forms an ion associate with the extracted anionic surfactant; simultaneously, the formed L-RB ion associate is accompanied by a spectral change. Namely, the extracted anionic surfactant changes the color of the membrane from light pink to dark pink (absorption maximum; 558 nm). The optical membrane responds to anionic surfactants, such as dodecylbenzenesulfonate, dodecylsulfate and di-2-ethylhexyl sulfosuccinate in the concentration range from 1 to 50 μM. 2008

Original languageEnglish
Pages (from-to)809-812
Number of pages4
JournalAnalytical Sciences
Volume24
Issue number6
DOIs
Publication statusPublished - 2008 Jun

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rhodamine B
Anionic surfactants
Optical sensors
Lactones
Membranes
Ions
Vinyl Chloride
Polyvinyl Chloride
Protons

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Optical sensor of anionic surfactants using solid-phase extraction with a lactone-form rhodamine B membrane. / Masadome, Takashi; Akatsu, Motoo.

In: Analytical Sciences, Vol. 24, No. 6, 06.2008, p. 809-812.

Research output: Contribution to journalArticle

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