K. Jumel et al., RAPID SIZE DISTRIBUTION AND PURITY ANALYSIS OF GASTRIC MUCUS GLYCOPROTEINS BY SIZE-EXCLUSION CHROMATOGRAPHY MULTI-ANGLE LASER-LIGHT SCATTERING, International journal of biological macromolecules, 18(1-2), 1996, pp. 133-139
The weight average molar masses and molar mass distributions of two co
mmercial pig gastric mucins and two fresh mucin preparations were dete
rmined by the technique of size exclusion chromatography coupled on-li
ne to multi angle laser light scattering (SEC/MALLS). Both commercial
samples exhibited much lower molar mass averages than the freshly prep
ared material and contained more impurities. On the other hand: a fres
h mucin preparation examined after being stored frozen for 18 months r
evealed a slight increase in molar mass.