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Determination of micelle size in some commercial liquid scintillation cocktails



Denis E. Bergeron


We performed dynamic light scattering measurements on commercially available liquid scintillation (LS) cocktails over a range of aqueous and acid contents. In all cases, we measured hydrodynamic diameters substantially smaller than the current de facto canonical value of 8 nm. We describe the cocktail compositions that yield stable micelles and report the observed diameters. We also discuss calculations of the magnitude of the "micelle effect" on LS counting efficiencies and the error introduced by adopting an incorrect value for the micelle size.
Applied Radiation and Isotopes


Dynamic light scattering, liquid scintillation counting, micelle effect, MICELLE2


Bergeron, D. (2012), Determination of micelle size in some commercial liquid scintillation cocktails, Applied Radiation and Isotopes, [online], (Accessed April 14, 2024)
Created March 3, 2012, Updated November 10, 2018