Gel permeation chromatographic studies

Dilute solution light scattering and gel permeation chromatographic studies (performed in 1-chloronaphthalene at 220°C), and the inherent viscosity (performed in 1-chloronaphthalene at 206°C) is 0.16. The polymer is as polymerized, just before the curing step... 

Cadahia E, Conde E, Garcia-Vallejo MC, Fernandez de Simon B (1996) Gel permeation chromatographic study of the molecular weight distribution of tannins in the wood, bark and leaves of Eucalyptus spp. Chromatographia 42 95-100... 

Goodspeed DP, Chestnut LI. 1991. Determining organohalides in animal fats using gel permeation chromatographic cleanup Repeatability study. J Assoc Off Anal Chem 74(2) 388-394. 

Diffractometer (Model PW 1710), using CuKa radiation. A thin film ( lnun) of 1.5 by 1.5 cm square sample was used for X-ray studies. Both water and gas phase permeability measurements were done with a machined 1 cm diameter thin sample ( limn). The molecular wei t distribution was obtauned using a gel permeation chromatograph (Waters) with a styragel column and using tetrahydrofuran as the solvent. Attenuated total reflectance (ATR) and KBr pellet techniques were used for FTIR. Solid state NMR was done on precipitated powdered samples. A Rayonet RPR-100 reactor at 35 C was used for UV irradiation of the samples. 

Poly(dextran-g-acrylamides) from ferrous ion—hydrogen peroxide initiation Graft copolymerization of acrylamide onto dextran with ferrous ion-hydrogen peroxide initiation is being studied in detail. The effect of variation of each reaction parameter on graft copolymerization behavior may be measured by direct gel permeation chromatographic analysis of the final product polymer solution. 

The dramatic changes in viscoelasticity when EB solution is converted to LEB solution motivated us to study the chain conformation. We compared the molecular weight of EB and LEB solutions by gel permeation chromatography because molecular weight determination by GPC is based on chain size and shape. Gel permeation chromatographic (GPC) data were obtained for... 

Iron-containing compounds in biological and clinical samples have been studied by separating them on chromatographic columns that were coupled to inductively coupled plasma mass spectrometers. Four iron-containing proteins, namely ferritin, haemoglobin, myoglobin and cytochrome-c were separated on a gel permeation column (Takatera and Watanabe, 1991). The absolute detection limits were 0.01-1 mg for the four proteins when 10 ml injections of samples were analysed. In other research, excess iron accumulations in human and animal... 

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