A Method of Analytical Determination of Uvinul 4050H Stabilizer in Polypropylene Masterbatch Makrostab UV 2026

Page: 114

J. Rotschová and J. Strnadová

Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague


High performance liquid chromatography was used to determine quantitatively the low-molecular-weight hindered-amine light stabilizer Uvinul 4050H in polypropylene masterbatches after Soxhlet or ultrasonic extraction. The results were compared with those obtained by the direct determination of the nitrogen content.


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