Identification of phase boundaries in surfactant solutions via Compton spectrum quenching,Identification of phase boundaries in surfactant solutions via Compton spectrum quenching

Published

September 18, 2014

Author(s)

Denis E. Bergeron

Abstract

The critical micelle concentration and the phase boundary between isolated surfactant molecules and aggregates are probed via fluorescence spectroscopy and a Compton spectrum quenching technique for aqueous and toluenic solutions of Triton X-100 (TX-100). The internal fluorophore of TX-100 provides a convenient probe for the fluorescence measurements, and the appearance of redder bands in the fluorescence spectra and their relationship with aggregation (clustering of TX-100) phenomena is addressed. The Compton spectrum quenching approach makes use of quench indicating parameters (QIPs) commonly measured in liquid scintillation counting experiments. Phase boundaries identified by the QIP-based approach are in excellent accord with the fluorescence-based approach.

Citation

Journal of Physical Chemistry A

Volume

118

Pub Type

Journals

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DOI Link

Keywords

Reverse micelle, micellar phase boundary, liquid scintillation counting, counting efficiency, radioactivity standard

Citation

Bergeron, D. (2014), Identification of phase boundaries in surfactant solutions via Compton spectrum quenching,Identification of phase boundaries in surfactant solutions via Compton spectrum quenching, Journal of Physical Chemistry A, [online], https://doi.org/10.1021/jp502540n (Accessed April 24, 2024)