A procedure is described for the quantitative analysis of (Irganox 1076, Irganox 1010 and Tinuvin 327) in polypropylene matrices using on-line SFE/SFC. The eþ ects of pressure, extraction time, type of matrix (particle or ülm) and matrix parameters (particle size, ülm thickness, sample weight) are s
Analysis of low molecular weight constituents of polypropylene and other polymeric materials using on-line SFE-SFC
✍ Scribed by Cotton, Nicholas J. ;Bartle, Keith D. ;Clifford, Anthony A. ;Ashraf, Sameena ;Moulder, Robert ;Dowle, Christopher J.
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 365 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0935-6304
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✦ Synopsis
Abstract
Additives and oligomers from polymers were quantitatively extracted and separated using on‐line SFE and capillary SFC. Conditions were found which extracted the additives selectively and separated them from the co‐extracted oligomers.
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## Abstract Rapid analysis is important for on‐line chromatography. Gaseous or vaporized samples have been injected via heated gas sampling valves of less than 500 μl dead volume. The critical sampling and split problems could be solved by temperature programming. The general analysis described cou