Chromatography calibration with PMMA

Analyse the product using gel permeation chromatography (GPC) calibrated with a range of PMMA narrow standards to determine M, and... [Pg.106]

Mn and MJM were determined by size-exclusion chromatography with PMMA calibration. [Pg.113]

Different liquid chromatography modes in polymer analysis were successfully interfaced with electrospray ionisation time-of-flight mass spectrometry in a single experimental set-up the mass spectrometry data from size exclusion chromatography/mass spectrometry of PMMA were used as absolute calibration points in the size exclusion chromatography/refractive index chromatogram, and monomer mass and end groups were inferred from the isotopically resolved mass spectra. 44 refs. [Pg.97]

The molecular weights of the samples were determined by size exclusion chromatography (SEC) using a PMMA calibration. A Waters GPCV 2000 with a temperature-controlled column/detector compartment that holds a three capillary viscometer and a differential refractometer was used. The temperature in the column/detector compartment was 95°C. [Pg.1114]