2D Analysis for Thermoplastic Elastomers
Dr. Daniela Held, Peter Kilz
The online combination of gradient HPLC and GPC/SEC increases peak capacity of separations and allows evaluation of peaks that cannot be separated by either method alone. The 2D approach is the only way to determine two property distributions independently and unambiguously. A better understanding of the polymerization process and of structure–property relationships can be obtained that might help to tune products for specific applications.
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Molecular Weight Determination of Gelatin
Dr. Günter Reinhold, Dr. Daniela Held
Reproducible and easy-to-use GPC/SEC analysis for all types of gelatins can be performed using a SECcurity GPC system and PROTEEMA columns.
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GPC/SEC–MALLS Study of Protein Denaturation
Prof. Thorsten Hofe
GPC/SEC-MALLS is a powerful tool to detect and follow the transition of protein structures. GPC/SEC allows the separation of the associates (dimer, trimer, etc.). Absolute molar masses can be detected for various structures, quantification is performed using a concentration detector.
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High Resolution Saccharide and Polysaccharide Analysis using Small Particles
Dr. Günter Reinhold
PSS SUPREMA columns with a particle size of 5-µm provide outstanding resolution, especially in the low molecular weight area, which is a major consideration when analysing oligomeric polysaccharides.
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GPC/SEC-MALLS Analysis of Hyaluronic Acid
Dr. Günter Reinhold and Friedhelm Gores
GPC/SEC is the method of choice for measuring the molar mass distribution of hyaluronic acid. True molar masses can be obtained when on-line multi-angle light scattering is used in combination with a refractive index detector.
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Characterization of Polyethylene with High Temperature GPC
Dr. Peter Montag
Polyethylene (PE) is the most common polymer material and requires high-temperature GPC for characterization. Analysis requires dedicated instrumentation and columns with a wide and mismatch-free separation range.
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