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Talanta

Talanta

IF: 5.6
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Visual and real-time detection of the critical micelle concentration of nonionic surfactants using a supramolecular aggregate probe responsive to stable micelles

Published:9 December 2024 DOI: 10.1016/j.talanta.2024.127353 PMID: 39671995
Wang Cai,?Gang Shen,?Runzhi Li,?Yingnan Ma,?Maozhang Tian,?Huanfeng Ye,?Fengmin Yang,?Lixia Wang,?Hong Zhang,?Changzheng Wang,?Qun Zhang,?Yuan Li,?Xu Han,?Yalin Tang

Abstract

The critical micelle concentration (CMC) is considered one of the important parameters for evaluating and comparing surfactants. We have developed a novel method for detecting the CMC of nonionic surfactants, based on the environmentally responsive characteristics of cyanine dyes probes. Notably, this method exhibits high sensitivity, visual real-time monitoring capabilities, and robust anti-interference properties. The method remains effective even under alterations in pH (2-12), metal ion concentrations (0-150?mM of K+, Na+, Ca2+) and salinity levels (0-20?g/L). Furthermore, the method has been successfully applied to the analysis of real water such as lake water, water flooding, and oil-field sewage containing polymers, demonstrating its good applicability. This marks the first instance where we establish the application of detecting the CMC of nonionic surfactants using cyanine dye probes, offering a fresh perspective for developing highly sensitive, visual, real-time, and interference-resistant CMC detection methodologies.

Substances (2)

Materials
Procduct Name CAS Molecular Formula Supplier Price
Sodium chloride 7647-14-5 ClNa 1692 suppliers $5.00-$6678.62
Triton X-100 9002-93-1 (C2H4O)nC14H22O 844 suppliers $16.00-$5950.00

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