Abstract
ABSTRACTThe study presents the possibility to use gel permeation chromatography (GPC) with atmospheric pressure chemical ionization (APCI)–mass spectrometry (MS) for the analysis of oligomeric structures having molecular weights up to 2000 g mol−1. Polymethylmethacrylate and polystyrene oligomers were analyzed in chloroform using 2.1-mm-internal diameter GPC columns. The low flow rate of 50 µL min−1 and the ionization with chlorine allow a fast optimization of the method parameters. Excellent correlation with the expected isotope distributions and linear calibration curves were obtained for both types of oligomers.
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