Gel permeation chromatography for the determination of the molecular mass distribution of some industrial proteins

1990 ◽  
Vol 509 (1) ◽  
pp. 227-231
Author(s):  
Lidia Warzecha ◽  
Zdzisława Piwowar ◽  
Danuta Bodzek
Keyword(s):  
Molecular Mass ◽  
Mass Distribution ◽  
Molecular Mass Distribution ◽  
Gel Permeation Chromatography ◽  
Gel Permeation

Application of gel permeation chromatography to the determination of molecular mass distribution of aliphatic polyamides

1990 ◽  
Vol 32 (8) ◽  
pp. 1704-1708 ◽  
Author(s):  
E.E. Dmitrieva ◽  
V.V. Gur'yanova ◽  
Yu.A. Khrakovskaya ◽  
O.M. Karan'yan ◽  
G.P. Lyubimtseva ◽  
...  
Keyword(s):  
Molecular Mass ◽  
Mass Distribution ◽  
Molecular Mass Distribution ◽  
Gel Permeation Chromatography ◽  
Gel Permeation

On the dimensions of intramolecularly crosslinked polymer molecules - III. The measurement of the dimensions of intramolecularly crosslinked polystyrene

1973 ◽  
Vol 334 (1599) ◽  
pp. 477-491 ◽  
Keyword(s):  
Light Scattering ◽  
Molecular Mass ◽  
Mass Distribution ◽  
Molecular Mass Distribution ◽  
Gel Permeation Chromatography ◽  
Polymer Molecules ◽  
Crosslinked Polymer ◽  
Crosslinked Polystyrene ◽  
Gel Permeation ◽  
Molecular Masses

The intramolecularly crosslinked polystyrene molecules, prepared as in part I of this series, were examined by the techniques of light scattering, osmometry, viscometry, and gel permeation chromatography. Their molecular masses and molecular mass distribution remained constant over all the stages of the reaction radii of gyration were determined and the results compared with those predicted in part II of this series.

Methods of investigation evaluation of the molecular mass distribution of aliphatic polyamides by gel permeation chromatography

1987 ◽  
Vol 29 (10) ◽  
pp. 2445-2449 ◽  
Author(s):  
Ye.E Shelkovaya ◽  
O.V Yershov ◽  
G.P Lyubimtseva ◽  
A.Ye Teishev ◽  
V.V Gur'yanova ◽  
...  
Keyword(s):  
Molecular Mass ◽  
Mass Distribution ◽  
Molecular Mass Distribution ◽  
Gel Permeation Chromatography ◽  
Gel Permeation

New approaches for the determination of dextran in the sugar production process

2018 ◽  
pp. 138-146 ◽  
Author(s):  
Karin Abraham ◽  
Eckhard Flöter
Keyword(s):  
Molecular Mass ◽  
Mass Distribution ◽  
Molecular Mass Distribution ◽  
Molecular Size ◽  
Mass Variation ◽  
Negative Effects ◽  
New Approaches ◽  
Precise Knowledge ◽  
Enzyme Application

The presence of polysaccharides in cane and beet raw juices causes several negative effects during the sugar manufacture. These are usually mitigated by enzymatic decomposition of dextrans. Such effects not only depend on the content, but also on the molecular mass distribution. This means that the different dextran fractions specifically affect the process. An accurate process control hence requires the most precise knowledge about the existing content and the molecular mass distribution present. A detailed understanding of the specific processing problems and also a targeted enzyme application hence requires the determination of a total dextran content and also its characterization including the differentiation between the different dextran fractions. An accurate analytical tool which equally satisfies industrial applicability is still lacking. To improve on this situation, two new approaches for the determination of dextran were developed and benchmarked against the commonly used and established Haze Method, which is rather inaccurate and also sensitive to molecular mass variation. The two new approaches are both based on polarimetry. These two methods indicate to be superior over the Haze Method with respect two molecular mass variation and hence enable the determination of a broader molecular size range including also low molecular mass dextrans.

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