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Study on the Interaction between a Novel Ionic Liquid Probe and Anionic Surfactants Using Resonance Light Scattering Spectra and Its Analytical Application
Author(s) -
Wang Weijuan,
Zeng Yanbo,
Lu Qiying,
Xiao Ying,
Li Lei,
Ye Zhaoxia,
Pang Ming
Publication year - 2010
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201090204
Subject(s) - chemistry , dodecylbenzene , sulfonate , bromide , sodium , resonance (particle physics) , reagent , ionic liquid , sodium dodecyl sulfate , analytical chemistry (journal) , spectrophotometry , buffer solution , nile blue , chromatography , inorganic chemistry , fluorescence , organic chemistry , catalysis , physics , particle physics , quantum mechanics
The interaction between anionic surfactants (AS) and 1‐hexadecyl‐3‐methylimidazolium bromide [C 16 mim]Br was studied by using resonance light scattering (RLS) technique, UV‐Vis spectrophotometry and fluorometric methods. In Britton Robinson (BR) buffer (pH 6.0), [C 16 mim]Br reacted with AS to form supermolecular complex which resulted in enhancement in RLS intensity. Their maximum RLS wavelengths were all at 390 nm. Some important interacting experimental variables, such as the solution acidity, [C 16 mim]Br concentration, salt effect and addition order of the reagents, were investigated and optimized. Under the optimum conditions, quantitative determination ranges were 0.001–7 μg·mL −1 for dodecyl sodium sulfate (SDS), 0.001–6 μg·mL −1 for sodium dodecylbenzene sulfonate (SDBS) and 0.005–7 μg·mL −1 for sodium lauryl sulfonate (SLS), respectively, while the detection limits were 1.3 ng·mL −1 for SDS, 1.0 ng·mL −1 for SDBS and 5.1 ng·mL −1 for SLS, respectively. Based on the ion‐association reaction, a highly sensitive, simple and rapid method has been established for the determination of AS.