5μm,10μm,and 50μm.The relationship between the base width with respect to average molecular weight and number average molecular weight of micropattern were also investigated.It was discovered that the average molecular weight and number average molecular weight decreased as the base width ...
LIGHT SCATTERING STUDIES ON THE WEIGHT-AVERAGE MOLECULAR WEIGHT AND SIZE OF UNFRACTIONATED CELLULOSE ACETATEMolecular weight of unfractionated cellulose acetate, was determined by turbidity measurements, using light scattering photometer for 436nm and 546nm wave-lengths at 25掳C. For comparison, the ...
Five molecular weight averages can be statistically calculated from molecular size profile data (Mn, Mw, Mz, Mz+1 & Mv), and are defined by the equations detailed below. Mn is the number-average molecular weight and is simply the arithmetic mean, i.e. the sum of the molecular weights ...
family genes,Tnfaip6and hyaluronidase-3 (Hyal3) were systematically overexpressed in NMR tissues. In conclusion, NMR samples, contrary to expectations, do not harbor ultra-high molecular weight HA, although its amount and average molecular weight are higher in NMR than in guinea pig tissues and ...
By using standard algorithms such as the Koppel algorithm10, DLS can provide numerical values that represent a length dimension (sphere-equivalent hydrodynamic diameter), interpreted as an average size, as well as a dimensionless value, the polydispersity index, which is used to indicate physical ...
A precise and rugged high performance size exclusion chromatography (HPSEC) method for determination of peak maximum molecular mass (Mp), weight average molecular mass (Mw), number average molecular mass (Mn), and molecular mass distribution (MMD) in Low Molecular Weight heparin (LMW heparin) has...
High-pressure size exclusion chromatography (HPSEC) is a powerful technique for determining molecular weight (MW) distributions of aquatic humic substances (HS). Previous researchers have shown that HPSEC can provide values of weight average molecular weight ( M w), number average molecular weight (...
Inclusion of the response below molecular weight (MW) 2000 resulted in extremely low values of number-average MW.doi:10.1080/10826079608017142Sadao MoriHidetoshi KatoYasuhiko NishimuraTaylor & Francis GroupJournal of Liquid ChromatographyMori S, Kato H, Nishimura Y (1996) J Liq Chromatogr Rel Technol...
are analyzed by vapor pressure osmometry for number average molecular weight and by analytical-scale size exclusion chromatography for molecular weight spread. ... JF Schabron,AT Pauli,JF Rovani - 《Office of Scientific & Technical Information Technical Reports》 被引量: 10发表: 1999年 Co-refining...
It was also reported that during nanocrystal formation, the average crystal size increased and the internal lattice strain decreased at higher milling intensities owing to the enhanced thermal effects (Kuhrt et al., 1993). In accordance with this argument, the grain size of Si milled at a high...