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Quantitative analysis of polymer additives in low density polyethylene using supercritical fluid extraction/supercritical fluid chromatography

✍ Scribed by Ashraf-Khorassani, Mehdi ;Levy, Joseph M.

Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
521 KB
Volume
13
Category
Article
ISSN
0935-6304

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✦ Synopsis

Abstract

Analysis of low concentration polymer additives has been a challenging problem. The commonly used methods of analysis involve the initial extraction of polymer additives with solvents, often in a Soxhlet apparatus, followed by liquid, size exclusion, or gas chromatography. This paper describes the on‐line super‐critical fluid extraction (SFE)‐supercritical fluid chromatographic (SFC) determination of different additives from low density polyethylene. Cryogenic collection was used as an interface between SFE and SFC to focus the extraction eluate before transfer to an analytical SFC column for quantitative analysis.

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