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Critical micelle concentration values for different surfactants measured with solid-phase microextraction fibers.
Environ Toxicol Chem. 2016 09; 35(9):2173-81.ET

Abstract

The amphiphilic nature of surfactants drives the formation of micelles at the critical micelle concentration (CMC). Solid-phase microextraction (SPME) fibers were used in the present study to measure CMC values of 12 nonionic, anionic, cationic, and zwitterionic surfactants. The SPME-derived CMC values were compared to values determined using a traditional surface tension method. At the CMC of a surfactant, a break in the relationship between the concentration in SPME fibers and the concentration in water is observed. The CMC values determined with SPME fibers deviated by less than a factor of 3 from values determined with a surface tension method for 7 out of 12 compounds. In addition, the fiber-water sorption isotherms gave information about the sorption mechanism to polyacrylate-coated SPME fibers. A limitation of the SPME method is that CMCs for very hydrophobic cationic surfactants cannot be determined when the cation exchange capacity of the SPME fibers is lower than the CMC value. The advantage of the SPME method over other methods is that CMC values of individual compounds in a mixture can be determined with this method. However, CMC values may be affected by the presence of compounds with other chain lengths in the mixture because of possible mixed micelle formation. Environ Toxicol Chem 2016;35:2173-2181. © 2016 SETAC.

Authors+Show Affiliations

Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.Material Physics and Analytics, BASF SE, Ludwigshafen, Germany.Safety and Environmental Assurance Centre, Unilever, Sharnbrook, Bedford, United Kingdom.Shell Health, Manchester, United Kingdom.Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Schmallenberg, Germany.Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26873883

Citation

Haftka, Joris J-H, et al. "Critical Micelle Concentration Values for Different Surfactants Measured With Solid-phase Microextraction Fibers." Environmental Toxicology and Chemistry, vol. 35, no. 9, 2016, pp. 2173-81.
Haftka JJ, Scherpenisse P, Oetter G, et al. Critical micelle concentration values for different surfactants measured with solid-phase microextraction fibers. Environ Toxicol Chem. 2016;35(9):2173-81.
Haftka, J. J., Scherpenisse, P., Oetter, G., Hodges, G., Eadsforth, C. V., Kotthoff, M., & Hermens, J. L. (2016). Critical micelle concentration values for different surfactants measured with solid-phase microextraction fibers. Environmental Toxicology and Chemistry, 35(9), 2173-81. https://doi.org/10.1002/etc.3397
Haftka JJ, et al. Critical Micelle Concentration Values for Different Surfactants Measured With Solid-phase Microextraction Fibers. Environ Toxicol Chem. 2016;35(9):2173-81. PubMed PMID: 26873883.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Critical micelle concentration values for different surfactants measured with solid-phase microextraction fibers. AU - Haftka,Joris J-H, AU - Scherpenisse,Peter, AU - Oetter,Günter, AU - Hodges,Geoff, AU - Eadsforth,Charles V, AU - Kotthoff,Matthias, AU - Hermens,Joop L M, Y1 - 2016/06/17/ PY - 2015/12/16/received PY - 2016/01/15/revised PY - 2016/02/10/accepted PY - 2016/2/14/entrez PY - 2016/2/14/pubmed PY - 2017/7/25/medline KW - Freely dissolved concentration KW - Micelle formation KW - Octanol-water partition coefficient KW - Passive sampler KW - Surface tension SP - 2173 EP - 81 JF - Environmental toxicology and chemistry JO - Environ. Toxicol. Chem. VL - 35 IS - 9 N2 - The amphiphilic nature of surfactants drives the formation of micelles at the critical micelle concentration (CMC). Solid-phase microextraction (SPME) fibers were used in the present study to measure CMC values of 12 nonionic, anionic, cationic, and zwitterionic surfactants. The SPME-derived CMC values were compared to values determined using a traditional surface tension method. At the CMC of a surfactant, a break in the relationship between the concentration in SPME fibers and the concentration in water is observed. The CMC values determined with SPME fibers deviated by less than a factor of 3 from values determined with a surface tension method for 7 out of 12 compounds. In addition, the fiber-water sorption isotherms gave information about the sorption mechanism to polyacrylate-coated SPME fibers. A limitation of the SPME method is that CMCs for very hydrophobic cationic surfactants cannot be determined when the cation exchange capacity of the SPME fibers is lower than the CMC value. The advantage of the SPME method over other methods is that CMC values of individual compounds in a mixture can be determined with this method. However, CMC values may be affected by the presence of compounds with other chain lengths in the mixture because of possible mixed micelle formation. Environ Toxicol Chem 2016;35:2173-2181. © 2016 SETAC. SN - 1552-8618 UR - https://www.unboundmedicine.com/medline/citation/26873883/Critical_micelle_concentration_values_for_different_surfactants_measured_with_solid_phase_microextraction_fibers_ L2 - https://doi.org/10.1002/etc.3397 DB - PRIME DP - Unbound Medicine ER -