Improved Resolution for Paraquat and Diquat: Drinking Water Analysis Using the CORTECS UPLC HILIC Column
27 Mar 2015Diquat and paraquat are doubly charged quaternary ammonium herbicides. They are extensively used worldwide to control both crop and aquatic weeds. Both diquat and paraquat are too polar to be retained by reversed-phase liquid chromatography on C18 columns. This application demonstrates the UPLC separation using a CORTECS UPLC HILIC Column to significantly improve the retention and resolution of both analytes, allowing for detection down to 500 ppt by UV detection alone.
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CORTECS® Columns
WatersUnleash the power of your laboratory's instrumentation. CORTECS® 1.6 µm and 2.7 µm solid-core columns deliver new levels of performance. CORTECS Columns are available in both reversed-phase and HILIC options, giving you the flexibility and power to develop methods for challenging separations even faster. With different particle characteristics and innovative charged surface modifications, CORTECS Columns are suitable for use in a wide variety of applications. CORTECS Columns offer particle sizes ideal for HPLC, UHPLC, and UPLC platforms, assuring a simple, seamless method transfer with consistent results across different particle sizes and column configurations. CORTECS 1.6 µm and 2.7 µm solid-core columns are suitable for use in a wide variety of applications. CORTECS Columns offer particle sizes ideal for HPLC, UHPLC, and UPLC platforms, assuring a simple, seamless method transfer with consistent results across different particle sizes and column configurations.
