Determination of Critical Micelle Concentration of Surfactant Using RF Sensing

Annesha Mazumder, Arunangshu Biswas, Tapan K. Sau, P. Porwal, Azeemuddin Syed, P. Bhimalapuram

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

This paper utilizes RF Sensing to develop a facile methodology for the determination of Critical Micelle Concentration (CMC) of surfactants. The study is undertaken with the help of an Interdigitated Capacitor based RF Sensor. Due to change in permittivity, the sensor yields distinct resonant frequencies when introduced to solutions of varying concentration of Sodium Dodecyl Sulphate as the electrolyte. As the surfactant approaches micellization, the resonant frequency shift drastically alters, and this sudden transition is used to determine the value of CMC. The proposed technique estimates the CMC of SDS to be 6.5 x10-3M The introduced method is effective and less cumbersome as compared to traditional techniques.

Original languageEnglish (US)
Title of host publication2018 IEEE SENSORS, SENSORS 2018 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538647073
DOIs
StatePublished - Dec 26 2018
Event17th IEEE SENSORS Conference, SENSORS 2018 - New Delhi, India
Duration: Oct 28 2018Oct 31 2018

Publication series

NameProceedings of IEEE Sensors
Volume2018-October
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Other

Other17th IEEE SENSORS Conference, SENSORS 2018
Country/TerritoryIndia
CityNew Delhi
Period10/28/1810/31/18

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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