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Bottles with SP-NLC-water emulsions: (a) exposure time 0 s. shaking time 10 s. (b) exposure time 4 s. shaking time 10 s. (c) exposure time 8 s. shaking time 10 s. (d) exposure time12 s. shaking time 10 s. (e) exposure time 16 s. shaking time 10 s.
