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Development of Ultra-Fast pH-Gradient Ion Exchange Chromatography for the Separation of Monoclonal Antibody Charge Variants

18 May 2015

The pre-formulated buffers for pH gradient, introduced by Thermo Fisher Scientific, have greatly simplified the development of ion exchange chromatography (IEX) of monoclonal antibodies (mAbs). This application note shows how to push the throughput of pH gradient IEX even further. To achieve this, a MAbPac SCX-10 RS column, 5 μm, 2.1 × 50 mm was operated on a new Thermo Scientific™ Vanquish™ UHPLC system. The Vanquish UHPLC is a fully biocompatible system, suitable for the analysis of intact proteins.

Thermo Scientific™ MAbPac™ SCX-10 Monoclonal Antibody Analysis Column

Thermo Fisher Scientific

MAbPac™ SCX-10 Columns for the High-Resolution Separation and Analysis of Monoclonal Antibody VariantsThe Thermo Scientific™ MAbPac™ SCX-10 column line has been expanded to include 3 and 5 μm particle sizes for fast, high-resolution analysis as well as rapid separation (RS) columns for bio-UHPLC separations. These smaller-particle-size columns provide the same high resolution as the 10 μm columns, but with significantly faster analysis time. In addition, salt or pH gradients can be used to provide fast high-resolution, high-throughput analysis of monoclonal antibody (MAb) variant samples. The MAbPac™ SCX-10 columns are strong cation-exchange columns designed specifically for the high-resolution, high-efficiency analysis of MAbs and associated variants. The unique nonporous pellicular resin provides exceptionally high resolving power, permitting the separation of MAb variants that differ by as little as one charged residue. Hydrophobic interactions with the resin are eliminated for very efficient peaks.MAbPac™ SCX-10 Monoclonal Antibody Analysis Column Features: Unequalled high-resolution separations Exceptionally high efficiency Highest resolution of monoclonal antibody variants Unmatched column-to-column and lot-to-lot reproducibility Hydrophobic interactions eliminated Ideal for stability testing Column Details: Chemistry: Sulfonic Particle Size: 3, 5, 10 μm Length: 50, 150, 250 mm ID: 2.0, 4.0, 4.6 mm

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UHPLC and HPLCHigh performance liquid chromatography (HPLC) and ultra high performance liquid chromatography (UHPLC), also known as UPLC, are analytical techniques used to separate, identify and quantitate components of complex mixtures including biological samples such as proteins and lipids as well as chemical mixtures of pesticides, drugs and oils. Both techniques are liquid chromatographic methods but differ by operating pressures (HPLC < 6000 psi < UHPLC ). Components of HPLC and UHPLC systems include columns, detectors, pumps, autosamplers and column heaters. Explore a range of UHPLC and HPLC columns for your specific sample needs including reverse phase, normal phase, ion exchange, HILIC, ion exclusion and size exclusion columns. For more specialized HPLC, explore FPLC, countercurrent LC and simulated moving bed systems. Find the best UHPLC and HPLC equipment in our peer reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Ion ChromatographyIon chromatography, also known as ion exchange chromatography, is a high-performance liquid chromatographic technique used for the separation and identification of ions or polar molecules in a sample, including proteins, nucleotides and amino acids. Equipment includes ion exchange columns, ion exclusion columns, ion chromatography systems, pumps, and detectors. Find the best ion chromatography equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.AntibodiesAntibodies are used in techniques such as confocal and fluorescence microscopy, flow cytometry, ELISA, ELISPOT, immunohistochemistry, western blotting and immunopreciptation. Select specific antigen reactivity, high specific affinity, low non-specific binding, monoclonal or polyclonal, primary or secondary antibodies and associated conjugates such as an enzyme or dye for visualization.Monoclonal AntibodiesMonoclonal antibodies (mAbs) are lab-made molecules that can bind to specific antigens on cells, making them highly effective in treating cancers, autoimmune diseases, and infections. These targeted therapies are transforming the treatment landscape for many conditions. Browse our peer-reviewed product directory to find monoclonal antibodies for research and clinical applications; compare products, check reviews, and get pricing directly from manufacturers.BiotherapeuticsBiotherapeutics are proteins and other compounds (such as nucleic acids) produced by living organisms that have uses as therapeutics or in <i>in vivo</i> diagnostics. The most well-known example of a biotherapeutic product, and the first to be approved for therapeutic use, was recombinant human insulin.