Before you go to HPLC 2019, visit our conference page to learn what we’ll be doing, to easily contact us with any questions you may have, and to access the conference’s website for additional event details.
Authors: David S. Bell, Landon Wiest, Shun-Hsin Liang, Dan Li
Published By: LCGC North America
Year of Publication: July 2018
Volume, Issue: Volume 36, Issue 7
Abstract: The use of superficially porous particles (SPPs) for modern high performance liquid chromatography (HPLC) is now very common. Initially, SPPs rose as an alternative to sub-2-µm fully porous particles (FPPs). In recent years, many column manufacturers have developed 2-µm and smaller SPP-based products. This article investigates the practical utility of these smaller SPP designs.
Author: Tim Herring
Published By: Cannabis Industry Journal
Year of Publication: 2017
Because terpenes are somewhat volatile, the Restek team recommends using gas chromatography and advises against using HPLC for terpene analysis.
Many customers ask technical service which instrumentation is best, GC or HPLC, for analysis of terpenes. Terpenes are most amenable to GC, due to their inherent volatility. HPLC is generally not recommended; since terpenes have very low UV or MS sensitivity; the cannabinoids (which are present in percent levels) will often interfere or coelute with many of the terpenes.
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We have posted our HPLC 2016 presentations on our website for your review and study. Feel free to contact the authors directly with any questions you may have.
Authors: Edward G. Franklin and Ty W. Kahler
Published By: LCGC North America
Year of Publication: 2016
For the full issue, visit: http://images2.advanstar.com/PixelMags/lcgc-na/digitaledition/06-2016.html#18
In recent years, industry has been moving to columns with smaller and smaller inner diameters—moving from 4.6 and 3.0 mm i.d. columns to 2.1 mm, 1.0 mm, and even smaller. While small inner diameter columns have some clear advantages, they also bring challenges. Reduction of extracolumn volumes must be given greater consideration by both customers and manufacturers. This installment of “Column Watch” focuses on the sources of band broadening within high performance liquid chromatography (HPLC) columns with an emphasis on eddy dispersion. The physical mechanisms of dispersion are discussed and a review of the current literature as it pertains to small inner diameter columns is presented.
We have posted our HPLC 2015 presentations on our website for your review and study. Feel free to contact the authors directly with any questions you may have!
Visit www.restek.com/hplc2015 to learn more about our presentations, review technical abstracts, contact the presenters directly, and easily access the HPLC 2015 website.