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In a pH 4.2–6.0 HAc-NaAc buffer medium, the resonance Rayleigh scattering intensities of separate basic triphenylmethane dyes, such as methyl violet (MV), ethyl violet (EV), crystal violet (CV), methyl green (MeG), iodine green (IG), malachite green (MG), light green (LG), and tungstate ion solution, are very weak, but when these cationic dyes react with the tungstate ion (WO42−) to form ion-association...
A polyfluoroalkylmethacrylate (PFAM) film has been coated on the surface of the magnetic head by a dipping coating method to modify the surface properties. The films were characterized by means of a time-of-flight secondary ion mass spectrometer (TOF-SIMS), contact angle measurement and atomic force microscopy (AFM). The results indicate that the concentration of the solution is the main factor affecting...
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