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See Chinese contents: GB/T 25277-2010 GB/T 25277-2010: Plastics -- Determination of phenolic antioxidants and erucamide slip additives in polypropylene homopolymer formulations -- Liquid chromatography (LC)
This standard specifies the use of liquid chromatography for the determination of some commonly used additives in polypropylene homopolymer (PP-H). These additives are subjected to reflux extraction by the mixed solvent of dichloromethane/cyclohexane AND separation by liquid chromatography. The UV absorption is measured at 200 nm AND it is quantified by internal standard method.
