Industrial applications of supercritical fluid chromatography: polymer analysis |
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| Authors: | David E Knowles Lori Nixon Erin R Campbell Douglas W Later and Bruce E Richter |
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| Institution: | (1) Lee Scientific, Inc., 4426 South Century Drive, 84123 Salt Lake City, UT, USA |
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| Abstract: | Summary Polymers can be difficult to fully characterize by conventional chromatographic methods i.e., gas chromatography (GC), high performance liquid chromatography (HPLC) and size exclusion chromatography (SEC)] due to temperature instability, detector incompatibility, nonvolatility, molecular weight considerations or insufficient chromatographic efficiency. Capillary supercritical fluid chromatography (SFC) offers several advantages for polymer analysis. Complex distributions can be resolved, low temperatures can be used and individual oligomers can be detected, allowing differences in molecular weight distributions to be quantitatively and qualitatively measured. In this paper, results will be shown for the analysis of various types of polymers demonstrating how changes in chromatographic parameters affect the analysis
Industrielle Anwendungen der Chromatographie mit überkritischen fluiden Phasen: Polymeranalyse |
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