Improve Research Reproducibility A Bio-protocol resource
Concise Method
tooltip

2.4.2. Determination of surface tension

LS Leonardo Bandeira dos Santos
RS Rita de Cássia Freire Soares da Silva
PB Pedro Pinto Ferreira Brasileiro
RB Rodrigo Dias Baldo
LS Leonie Asfora Sarubbo
VS Valdemir A. dos Santos
request Request a Protocol
ask Ask a question
Favorite

The surface tension of the liquid was measured at 25 °C using Sigma 700 tensiometer (KSV Instruments Ltd., Helsinki, Finland) equipped with a du Noüy ring [12]. The tension of the surfactant solutions was calculated using the Langmuir method Langmuir [23]: γ0 = γ (n/n0), in which γ0 and γ are respectively the surface tensions of the reference solvent (γ0 = 73.49 dyn/cm2 for water) and surfactant solution and n0 and n are respectively the number of drops of the reference solvent and surfactant solution.

Copyright and License information:  ©2021 Published by Elsevier B.V.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Do you have any questions about this protocol?

Post your question to gather feedback from the community. We will also invite the authors of this article to respond.

post Post a Question
0 Q&A