Capillary zone electrophoresis for surfactant analysis in aqueous media was written by Kharitonova, Tatiana;Rudnev, Alexander;Ivanova, Nina. And the article was included in Progress in Colloid & Polymer Science in 2004.Quality Control of 1-Dodecylpyridin-1-ium bromide This article mentions the following:
Surfactant mixtures are commonly used in many industrial applications. At the same time, the methods for surfactant anal. are rather laborious and often do not permit the determination of the individual surfactant content in mixed solutions In the present work capillary zone electrophoresis (CZE) instrumentation was applied for the quant. anal. of a cationic surfactant (dodecylpyridinium bromide) and a nonionic surfactant (Triton X-100) in aqueous solutions The linear dependence of the anal. signal (peak area) vs. the surfactant concentration was established for both surfactants over a wide concentration range. The anal. signal of an individual surfactant was found to be independent of the addition of the second surface-active component, making it possible to determine the content of surfactants from both solutions of individual surfactants and mixed solutions The CZE method was shown to be appropriate for the determination of critical micelle concentrations as the intersection point of 2 straight lines describing the dependence of anal. signal vs. surfactant concentration below and above the critical micelle concentration In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Quality Control of 1-Dodecylpyridin-1-ium bromide).
1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridine’s the lone pair does not contribute to the aromatic system but importantly influences the chemical properties of pyridine, as it easily supports bond formation via an electrophilic attack. One of the examples of pyridines is the well-known alkaloid lithoprimidine, which is an A3 adenosine receptor antagonist and N,N-dimethylaminopyridine (DMAP) analog, commonly used in organic synthesis.Quality Control of 1-Dodecylpyridin-1-ium bromide