A Method for Determination of Critical Micellar Concentration of Surfactant

• 作者: Zhang Nana Yang Jingbang Zhang Guoquan
• 来源期刊: 日用化学品科学（英文版）
• 年，卷（期）: 2022,（1）
• 所属期刊栏目: Technologies
• 页码范围: 76-80
• 页数: 5页
• 语种: 英文

摘要

Measure the chemiluminescence value of acridine compound as luminescent agent in the surfactant solution with a series of concentrations, according to the value of the obtained luminescent value and the value of the corresponding surfactant concentration in the surfactant solution, linear fitting is carried out to obtain several fitting lines, and the minimum value of the surfactant concentration corresponding to the intersection of the two adjacent fitting lines is the critical micelle concentration of the surfactant. According to the results, the critical micelle concentration of Dodecyl trimethyl ammonium chloride is 11.5 mmol/L, Hexadecyl trimethyl ammonium Bromide is 0.357 mmol/L, Sodium dodecyl sulfate is 7.64 mmol/L, sodium N-lauroylsarcosinate is 0.890 mmol/L, Triton X-100 is 0.309 mmol/L, 3-((3-Cholamidopropyl)dimethylammonium)-1-propanesulfonate is 9.53 mmol/L, 3-(N,N-dimethyldodecylammonio) propanesulfonate is 1.73 mmol/L. The results were similar to those obtained by traditional methods, the method can be used in the study of critical micelle concentration of surfactants.