Evaluate the difference between glossy surfaces and matte surfaces.
Aluminum foil is produced by rolling two sheets together, where the outer side in contact with the rollers has a glossy surface, while the inner side, where the aluminum sheets touch each other, has a matte surface. We compared the components present on the extreme surfaces of each side. Common organic secondary pollutants such as PDMS (polydimethylsiloxane), BHT (antioxidant), DOP (plasticizer), amines (m/z 182, 242), amides (m/z 256, 284), and carboxylic acids (m/z 255, 283) were not observed. There was a slight tendency for Fe and organic materials (such as hydrocarbons) to be stronger on the glossy side, while substances like SO4 showed a slightly stronger tendency on the matte side.
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