Peter 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.
Modern HPLC Strategies That Improve Retention and Peak Shape for Basic Analytes
August 16th 2024In high-performance liquid chromatography (HPLC), it is common for bases and unreacted ionized silanols on silica-based columns to cause irreproducible retention, broad peaks, and peak tailing when working with basic analytes. David S. Bell, Lead Consultant at ASKkPrime LLC offers innovative HPLC strategies that can help mitigate such issues.
Advancing Chromatographic Analysis: A Novel Composite Technology for SPE
July 22nd 2024Solid Phase Extraction (SPE) is vital for chromatographic analysis. However, traditional loose-packed SPE products struggle with channelling and inconsistent resin mass, resulting in poor recovery and reproducibility. Discover how innovative composite technology overcomes these challenges to transform sample preparation, ensuring reliable and sensitive chromatographic data.
Unveil the Power of Raman Spectroscopy for Real-Time Product Insight
May 20th 2024Raman spectroscopy is the ideal approach to compositional analysis and provides great versatility. In this Q&A, Tom Dearing, Senior Staff Scientist, and John Richmond, Senior Sales Manager, both at Thermo Fisher Scientific, provide an overview of the MarqMetrix All-In-One Process Raman Analyzer.