The following presentations are provided in Windows Media format. You can find the latest windows media player at the Microsoft website. Firefox users, please download the latest Windows Media Plugin from Port25, the Microsoft Open Source Community website.
In a previous installment, we explored how the shape and packing of a gas chromatographic (GC) inlet liner affects the precision and accuracy of split injections. This webinar is the second of a two-part series and will focus, instead, on liner performance in splitless injections.Narrated by Scott Grossman, Innovations Chemist. Length: 33 minutes
There are many liners to choose from, but do they all perform the same for a given split analysis? This webinar explores how the shape and packing of a gas chromatographic inlet liner affects the precision and accuracy of split injections.Narrated by Scott Grossman, Innovations Chemist. Length: 34.5 minutes
In their comparison of GC and GCxGC, Blumberg et al stated, “the peak capacity of currently practiced GC×GC does not generally exceed the peak capacity attainable from 1D-GC with the same analysis time…”. Seemingly, Blumberg’s main point was that the typical first dimension column in GCxGC is operated suboptimally. We lengthened this column to “naturally” increase peak widths and present here what we believe is the first “true peak capacity increase” for GCxGC.Narrated by Jack Cochran, Director of New Business and Technology. Length: 55 minutes
Chromatographic selectivity has taken a backseat to efficiency and MS, however, there are situations today that argue for development of highly selective GC stationary phases, even when MS is used.
This webinar discusses the development and characterization of GC stationary phases which exhibit novel selectivity, and demonstrate how this can provide determinations not possible using routine phases, even if employing MS.Narrated by Jack Cochran, Director of New Business and Technology. Length: 27 minutes
This brief webinar introduces some common sources of poor liquid chromatography, and presents easy ways to improve chromatographic performance. Money-saving techniques for improving analytical and guard column lifetime will also be discussed. Less than 17 minutes could help you get the most from your HPLC column and chromatographic system!Narrated by Amanda Rigdon. Length: 16.5 minutes
An overview of the principles of LC/MS, focusing on the impact of column selection. Attendees will learn how to optimize separations using stationary phase selectivity and column dimensions.Narrated by Becky Wittrig, Global HPLC Specialist, & Amanda Rigdon, Clinical/Forensics Applications Chemist. Length: 62 minutes
Learn how new GC column technology results in higher peak responses, lower detection limits, and more predictable retention times. Explores the effect of column technology on peak shape and chromatographic performance.Narrated by Chris English, Applications Manager. Length: 18 minutes
Guidelines have recently been established for levels of potential genotoxic impurities (PGIs) in pharmaceutical APIs. This webinar outlines LC/MS and GC/MS methods developed in collaboration with Merck & Co.Narrated by Amanda Rigdon, Innovations Chemist. Length: 17 minutes
Hybrid Midpolarity Siloxane Stationary Phase Polymers for Next Generation, High-Performance Capillary GC Columns
Recent application of new crossbonding and deactivation chemistries to a 35% phenyl equivalent hybrid siloxane phase results in advances in column efficiency, inertness for polar compounds, and thermal stability.Narrated by Chris English, Innovations Manager. Length: 20 minutes
This webinar introduces QuEChERS and dSPE and discusses their application to sample prep for GC/MS analysis of cannabinoids in urine. Attendees will learn how to increase sample throughput with this simple approach.Narrated by Amanda Rigdon, Pharmaceutical Innovations Chemist.
This talk explores the benefits and practical considerations of operating a GC column under low pressure conditions. A novel concept that takes advantage of basic chromatographic parameters affecting resolution and column efficiency is presented.Narrated by Scott Grossman, Innovations Chemist.
Chromatographers implementing USP <467> Residual Solvents will benefit from this webinar which discusses system optimization and implementation strategies for USP <467>, as well as headspace GC fundamentals.Narrated by Rick Lake, Pharmaceutical Market Development Manager.
Analysis of veterinary drug residues in milk using a QuEChERS approach and Biphenyl column is discussed. Better retention is achieved, compared to C18 or phenyl phases, improving separation of analytes and matrix components.Narrated by Julie Kowalski, Foods, Flavors & Fragrances Applications Chemist. Length: 24 minutes
EZ Twist Top™ Injection Port Flash Player required
Take a guided tour of the new EZ Twist Top™ Injection port, to learn how it simplifies maintenance, eliminates tangled gas lines, and makes changing liners a snap.Narrated by Innovations Chemist Scott Grossman.
Waste Solvent Overflow Indicator Flash Player required
Learn how you can prevent messy mobile phase overflows with this compact, battery operated unit. Its audible alarm gives you time to empty or change the container before a spill happens.Narrated by Innovations Chemist Julie Kowalski.
Introduction to QuEChERS Flash Player required
Jack Cochran, Director of New Business and Technology at Restek, gives a brief overview of the QuEChERS process, and how it can simplify your sample preparation workflow.