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Stability and extraction features in the determination of Irganox-1330 in a polyalkene copolymer by Ulla Gasslander; Hans Jaegfeldt is a scholarly article available to read on EtoBox.

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The determination of Irganox-1330 in a polypropene/polyethene copolymer is described. The unstable antioxidant can be extracted from the copolymer without degradation at refluxing temperature by using decalin, hexane, chloroform or tetrahydrofuran if adequate protection is provided. The time needed for quantitative extraction is 30 min if the particle size of the polymer is <l.O mm for any of the solvents. The standardaddition procedure described provides accurate results even when the sample is extracted after being immersed directly in the extracting solvent. For practical purposes, hexane is the preferred extractant. A modified direct-phase high-performance liquid chromatographic system provided a fast, sensitive and stable means of completing the determination.

Author

Ulla Gasslander; Hans Jaegfeldt

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0003-2670)

Published

1985

Language

EN