Abstract
The utility of low viscosity mobile phases and long chromatographic columns for complex polymer analysis is demonstrated. We use long column supercritical fluid chromatography/mass spectrometry (SFC/MS) with electrospray ionization (ESI) to characterize a variety of complex, low molecular weight polymers. When quantitative analysis is desired, the resulting three-dimensional (time, intensity, and mass-to-charge ratio [ m/ z]) data are converted to images. Custom image analysis software is used to detect and integrate peaks in arbitrarily defined regions of the time- m/ z map. These integrated peak volumes can be used to quantitate distinct component classes of the polymer mixtures.
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