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Table 1 Comparison of the CMC of SDS, CTAB, and TX-100 between typical published methods and the proposed method in water solution

From: A new simple method for determining the critical micelle concentration of surfactants using surface plasmon resonance of silver nanoparticles

Technique CMC, × 10−3 mol L−1 Reference
SDS CTAB TX-100  
UV-visible spectrophotometry 1.0a 0.06a 0.70a (Khamis et al. 2005)
0.80b 0.10b 0.70b (Khamis et al. 2005)
7.19a 0.76a n.d (Mondal and Ghosh 2012)
Fluorescence n.d 0.75 n.d (Halder 2007)
7.62 0.89 0.24 (Aguiar et al. 2003)
4.22 0.83 n.d (Prazeres et al. 2012)
7.96 0.75 n.d (Mondal and Ghosh 2012)
Resonance Rayleigh scattering 8.0 0.98 n.d (Shi et al. 2011)
Fiber-optic refractive index 8.1 0.15 0.21 (Tan et al. 2010)
Conductometry 8.1 0.99 0.31 (Brooks et al. 1988)
8.0 n.d n.d (Fuguet et al. 2005)
Voltammetry 8.3 0.88 n.d (Ma et al. 1998)
n.d n.d 0.31 (Liu et al. 1999)
SPR of AgNPs 8.6a 0.9a 0.26a This work
  1. n.d not determined
  2. aCMC from absorbance changes measurements
  3. bCMC from surface tension changes measurements