Summary
A scheme was devised for the identification of 22 common antioxidants and light-stabilisers in polyolefins. The separation of these stabilisers was performed by isocratic reversed phase high-performance liquid chromatography on a RP-18 column. Three different separation conditions have been used: the mobile phase composition was 100% acetonitrile (MeCN), 90/10 meCN/H2O and 80/20 MeCN/H2O. The UV254/UV280 ratio and the elution time of each stabiliser were determined for these three mobile phase compositions. The values of UV254/UV280 ratios may be used together with the retention time values for the identification of unknown stabilisers in polyolefin samples.
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Munteanu, D., Isfan, A., Işfan, C. et al. High-performance liquid chromatographic separation of polyolefin antioxidants and light-stabilisers. Chromatographia 23, 7–14 (1987). https://doi.org/10.1007/BF02310410
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DOI: https://doi.org/10.1007/BF02310410