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. Author manuscript; available in PMC: 2013 Jul 27.
Published in final edited form as: Environ Pollut. 2011 May;159(5):1334–1342. doi: 10.1016/j.envpol.2011.01.018

Fig. 4.

Fig. 4

Chromatograms of m/z −720, −736, and −752 for solid phase extractions of A) PVP aqueous solution, B) a cosmetic (sunscreen) without C60, C) C60-PVP aqueous solution, and D) cosmetic #2 with Radical Sponge®. Elution time is plotted on the x-axis up to 10 min. The y-axis (MS signal in kilocounts) maximum is 8, 200, 35, and 75 for A, B, C, and D, respectively.