What is a Redi-Reckoner™?

A Redi-Reckoner™ is a generic strategy, a paradigm, a road map that makes it easy to develop chromatographic methods in a minimal amount of time and very economically. It is a series of chromatograms that follow a pathway of increasing column inner diameter (ID), column length, flow rate, gradient mixtures and strategies and or sample loading that leads a chromatographer to the best column for their separation needs.

What is it used for? How does it work?

The data provided in the Redi-Reckoner™ gives you more information to make informed decisions before buying your Analytical, Semi-prep, Prep or Process scale HPLC column. Often, a standard Analytical HPLC Column (250mm x 4.6mm) is not the best analytical column for resolution. With the Redi-Reckoner™, the best column becomes more obvious without the aid of computer programs or sophisticated software at a single glance.

Using a Cogent "Half Column"™ and a Redi-Reckoner™ you can see how your fast, optimized (4.6mm x 75mm) column separation will perform in large, expensive prep columns before investing in the purchase; the Redi-Reckoner™ helps you to predict your separation’s limits on various column sizes and dimension before buying them.