Matching Effects in the Interaction of Ionic Surfactants with Fluorescent Reagents in Micellar Solutions of Triton X-100

IF 0.7 Q4 CHEMISTRY, ANALYTICAL

Methods and Objects of Chemical Analysis Pub Date : 2021-01-01 DOI:10.17721/moca.2021.117-126

V. Klovak, S. Kulichenko, S. Lelyushok

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引用次数: 3

Abstract

The influence of cationic and anionic surfactant solutions on the character of the fluorescence spectra of reagents of different charge and hydrophobicity in aqueous solutions of nonionic surfactant Triton X-100 has been studied. An increase in the fluorescence intensity and a shift in the position of the fluorescence maximum with increasing hydrophobicity of reagents and ionic surfactants have been shown. The analytical signal of the surfactant is further amplified in the proximity of the charge values of the reagent and the counterion of the surfactant. The non-monotonic nature of the hydrophobicity effect of cationic surfactants on their analytical signal in the system has been shown. The observed effects are explained by the realization of charge and hydrophobic matching in the interaction of surfactants with the fluorescent reagents. The obtained effects are significant in the design of fluorescent systems for the determination and study of surfactant micelles. Conditions for detecting the content of cetylpyridinium chloride by reaction with eosin Y and sodium tetradecyl sulfate by reaction with rhodamine 6G in the presence of Triton X-100 were proposed. The methods have been tested in detecting the content of the ionic surfactants in pharmaceuticals.

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Triton X-100胶束溶液中离子表面活性剂与荧光试剂相互作用的匹配效应

研究了非离子表面活性剂Triton X-100水溶液中阳离子和阴离子表面活性剂溶液对不同电荷和疏水性试剂荧光光谱特性的影响。随着试剂和离子表面活性剂疏水性的增加，荧光强度增加，荧光最大值的位置变化。在试剂的电荷值和表面活性剂的反离子附近，表面活性剂的分析信号进一步放大。证明了阳离子表面活性剂的疏水性对其在体系中的分析信号的非单调性。观察到的效应可以用表面活性剂与荧光试剂相互作用中电荷和疏水匹配的实现来解释。所得结果对设计用于表面活性剂胶束测定和研究的荧光系统具有重要意义。提出了在Triton X-100存在下，与伊红Y反应测定氯化十六烷基吡啶含量和与罗丹明6G反应测定硫酸十四烷基钠含量的条件。用该方法对药物中离子表面活性剂的含量进行了检测。

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来源期刊

Methods and Objects of Chemical Analysis CHEMISTRY, ANALYTICAL-

CiteScore

1.00

自引率

14.30%

发文量

期刊介绍： The journal "Methods and objects of chemical analysis" is peer-review journal and publishes original articles of theoretical and experimental analysis on topical issues and bio-analytical chemistry, chemical and pharmaceutical analysis, as well as chemical metrology. Submitted works shall cover the results of completed studies and shall make scientific contributions to the relevant area of expertise. The journal publishes review articles, research articles and articles related to latest developments of analytical instrumentations.