The development of the first TSKgel GPC column in 1971 had set the course for a long and proud history of size exclusion chromatography at Tosoh.
The development of the first TSKgel GPC column in 1971 had set the course for a long and proud history of size exclusion chromatography at Tosoh.
Today the range of SEC related products comprises of SEC/GPC systems – e.g. the compact, semi-micro EcoSEC system representing the 8th generation of SEC instrumentation technology - and stationary phases for both modes of size exclusion chromatography, aqueous gel filtration (GFC) and organic gel permeation chromatography (GPC):
Latest additions to the SEC column lines are linear, semi-micro SEC columns, the TSKgel SuperMultiporePW series, designed for fast size distribution analysis of water soluble polymers. Two brochures, the TSKgel GPC column brochure and the latest edition of the TSKgel SEC column brochure provide an excellent overview over the complete range of TSKgel size exclusion columns.
For more information please visit ref="http://www.tskgel.com">www.tskgel.com
The Complexity of Oligonucleotide Separations
January 9th 2025Peter Pellegrinelli, Applications Specialist at Advanced Materials Technology (AMT) explains the complexity of oligonucleotide separations due to the unique chemical properties of these molecules. Issues such as varying length, sequence complexity, and hydrophilic-hydrophobic characteristics make efficient separations difficult. Separation scientists are addressing these challenges by modifying mobile phase compositions, using varying ion-pairing reagents, and exploring alternative separation modes like HILIC and ion-exchange chromatography. Due to these complexities, AMT has introduced the HALO® OLIGO column, which offers high-resolution, fast separations through its innovative Fused-Core® technology and high pH stability. Alongside explaining the new column, Peter looks to the future of these separations and what is next to come.
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