ResourceSeparations

A Single-Injection UPC2 Method for Fast and Simultaneous Separation of Nine Fat-Soluble Vitamins

3 Aug 2014

Fast separation of hydrophobic vitamins and carotenes results in significantly improved throughput and cost savings, allowing laboratories to meet the increasing demand for regulatory compliance monitoring where a high number of analyses are required.

ACQUITY UPLC HSS T3 Columns for Polar Compound Retention

Waters

ACQUITY UPLC® HSS (High Strength Silica) T3 Columns contain the first and only 100% silica particle designed, tested and intended for use in applications up to 15000 psi/1000 bar. The ACQUITY UPLC® HSS particle is not an HPLC particle. High pore volume HPLC particles do not possess the mechanical stability necessary to withstand the high column packing and operating pressures of UPLC® separations. The first ligand chemistry in this UPLC®-certified column family utilizes T3 bonding in order to retain and separate polar organic compounds. ACQUITY UPLC® HSS T3 columns possess the superior polar-compound retention, aqueous mobile phase compatibility and ultra-low MS bleed of Atlantis® T3 columns. Easier Method Transfer Since Atlantis® T3 HPLC and ACQUITY UPLC® HSS T3 columns utilize T3 bonding, LC methods can be transferred from HPLC to UPLC® separations. Because Atlantis® and HSS particles are different substrates, some method modification and/or optimization may be required. A compelling benefit of UPLC® technology is the ease and speed at which this method optimization can occur since UPLC® separations offer greater resolution in less time. Moving from XBridge™ HPLC to ACQUITY UPLC® BEH columns is nearly seamless, as the hybrid particle substrates differ only in particle size. However, because of T3 bonding it should be straightforward to make simple adjustments to successfully transfer a separation from an Atlantis® T3 HPLC column to an ACQUITY UPLC® HSS T3 column.

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ACQUITY UPC² System

Waters

Convergence Chromatography with the ACQUITY UPC² System Bring streamlined workflow, expanded selectivity, and an orthogonal technique to your laboratory. Convergence chromatography (CC) is a broad-based, complementary analytical platform that is taking its place alongside of LC and GC as one of the three essential separation technologies for modern laboratory analysis. This technique provides another, reliable choice as an analytical platform that is orthogonal to reversed-phase LC (RPLC), while significantly streamlining the entire analytical workflow. In convergence chromatography, the separation is achieved by manipulating the density and composition of a supercritical fluid-based mobile phase. Because of the very high diffusivity of the mobile phase, can be achieved. Additionally, the diversity of stationary phase and mobile phase (co-solvent) options provides access to the largest selectivity space available to any separation technique. The ACQUITY UPC² System is a holistically designed UltraPerformance Convergence Chromatography (UPC²) system that utilizes liquid CO2 as the primary mobile phase. The system leverages the chromatographic principles and selectivity of normal-phase chromatography while providing the ease-of-use of RPLC, enabling you to address routine and complex separations challenges. ACQUITY UPC² System: Discover what's been missing from your analytical toolbox With the ACQUITY UPC² System, scientists can now separate, analyze, and understand compounds that have challenged all other LC and GC technologies including: Hydrophobic and chiral compounds Lipids Thermally-labile samples Polymers It's also the perfect complement to MS due to its low solvent load and high resolution, narrow peaks and fast separations. ACQUITY UPC² System Features: Compressed carbon dioxide (CO2), the primary mobile phase, is less costly and less toxic than liquid mobile phases or carrier gases. Variable volume injection delivers 0.5 µL to 10 µL as well as the ability to match column and injection volume with minimal sample loss and need to change loops. Higher throughput and productivity allows you to analyze more samples per day with faster re-equilibration of columns and shorter cycle times, increasing laboratory productivity. Co-solvent and column switching provides flexibility in method development for faster solvent screening and faster column screening.

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Empower™ Chromatography Data System

Waters

The Empower Chromatography Data System is Waters’ compliance-ready chromatography data software (CDS) for advanced data acquisition, processing, and reporting that simplifies the management of chromatography test results.

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A Single-Injection UPC2 Method for Fast and Simultaneous Separation of Nine Fat-Soluble Vitamins