Column Selection

Overview of major HPLC column types and how analyte polarity, charge, and size guide the first selection choice.

Select an HPLC column using four dimensions: chemistry, particle/pore size, dimensions, and application constraints.

What are HPLC Columns? HPLC (High-Performance Liquid Chromatography) columns are the heart of the HPLC system, playing a crucial role in the separation, identification, and quantification of components within a mixture.  These columns contain a stationary phase, which can be either solid or liquid, that interacts with the mobile phase—a solvent or a mixture of…

Introduction High-Performance Liquid Chromatography (HPLC) is a powerful analytical technique used across various industries, from pharmaceuticals and food safety to environmental monitoring and biotechnology. One of the key components in HPLC is the stationary phase—the material that interacts with the sample as it passes through the column. Among the wide range of stationary phases available,…

Introduction When it comes to liquid chromatography, choosing between Reversed-Phase Chromatography (RPC) and Normal-Phase Chromatography (NPC) can be tricky. Both methods have their strengths, but the right choice depends on your sample and what you’re trying to achieve. Are you working with non-polar or moderately polar compounds? Then RPC might be the way to go. Or perhaps…

Introduction Have you ever browsed a catalog of HPLC columns, only to feel lost in a sea of endless options? You’re not alone. Selecting the right HPLC column is critical—it’s the foundation for achieving accurate, reproducible results and ensuring the success of your analytical method. With so many choices available, it’s easy to feel overwhelmed….

Overview of HPLC and C18 Columns High-Performance Liquid Chromatography (HPLC) High-performance liquid chromatography (HPLC) is an analytical technique used to separate, identify, and quantify the components in a mixture. It relies on pumps to pass a liquid mobile phase containing the sample through a stationary phase packed in a column. The components in the mixture…

Have you ever wondered how scientists untangle complex mixtures into their individual components? Well, high-performance liquid chromatography (HPLC) is a powerful technique that achieves just that. And at the heart of this process lies a critical element: the HPLC column. What Different C8 or C18 HPLC Colum Main Difference for the C8 Column and C18…

High-Performance Liquid Chromatography (HPLC) 101 High-Performance Liquid Chromatography (HPLC) is a powerful technique used to separate and analyze the components of a mixture. Here’s a quick breakdown: The Process: Imagine a pressurized liquid (mobile phase) carrying your sample mixture through a tube packed with a special material (stationary phase). Different components in the mixture interact with…

The Heart of HPLC System : Columns HPLC columns are the workhorses of the system. Available in various types based on the separation mechanism and the stationary phase. C18 columns are the most widely used type.   Tips:  HPLC columns are the central components of the HPLC system. They come in a variety of types,…