Attention Method Development Scientists! Learn about novel tools for replicating your existing methods

Attention Method Development Scientists! Learn about novel tools for replicating your existing methods

By Paula Hong Reading Time: 4 minutes

Webinar Highlights | Simplifying Methods Transfer: Novel Tools for Replicating Your Established Methods on an ACQUITY Arc System I’m Dr. Paula Hong, Principal Scientist at Waters Corporation. I recently conducted a webinar that talked about the instrument characteristics that can impact transfer of established reversed-phase methods across both HPLC and UHPLC systems. These factors include dwell…

Dispersion Matters: Rethinking How LC Systems Should be Categorized

Dispersion Matters: Rethinking How LC Systems Should be Categorized

By Waters Staff Reading Time: 3 minutes

For more than five decades, attempts have been made to improve liquid chromatography separations performance by reducing the particle size of the stationary phase. However, the benefits of doing so can only be realized if the LC instrument provides an appropriate amount of extra-column dispersion (band spreading) in relation to the volume of the column…

Chapter and Verse: USP 621 and You

Chapter and Verse: USP 621 and You

By Waters Staff Reading Time: 5 minutes

In August 2014, the United States Pharmacopeia and the National Formulary (USP-NF) put into effect new guidelines to “allowable adjustments” in its Chapter <621> (USP37-NF32 S1). And as of August 1, 2016 when USP 39 NF 34 S1 goes into effect, for <621> nothing significant has changed since. The USP doesn’t publicize changes to their…