Ghost Peaks in Gas Chromatography Part 4: Reactivity in The Column While Doing Separations

Author(s): Jaap de Zeeuw
Restek Corporation

Published By: Separation Science

Issue: vol. 5, issue 10

Year of Publication: 2013

Link: http://www.sepscience.com/Information/Archive/All-Articles/2467-/Ghost-Peaks-in-Gas-Chromatography-Part-4-Reactivity-in-The-Column-While-Doing-Separations

For the full print issue, visit http://www.sepscience.com/docs/Bespoke/Editions/SepSci/Sepsci1013eu.pdf?utm_source=iContact&utm_medium=email&utm_campaign=eLearning%20Newsletter%20-%20Europe%20Sep%20Sci&utm_content=

Abstract: In the last issues we discussed possible sources for ghost peaks related to the carrier gas, gas lines, injection port and parts, degradation, and the column. Here we move onto several other contributions that are not as obvious as the former options.

Restek Advantage

Published By: Restek Corporation

Issue: 2013.1

Year of Publication: 2013

Link: http://www.restek.com/pdfs/GNAD1795-UNV.pdf

Abstract: The Restek Advantage is a technical magazine covering industry news, chromatography applications, and guest editorials by leaders from a wide range of fields. Highlights from this issue include feature articles on the benefits of proper column selectivity for PAHs, dioxins, and furans; overcoming matrix effects for pesticides in food; cutting analysis time in half for TO-15 VOCs; and much more.

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Restek is excited to announce the evolution of superficially porous particles with the introduction of Raptor™ LC columns.

Raptor™ LC ColumnsSuperficially porous particles (commonly referred to as SPP or “core-shell” particles) changed the world of LC by dramatically boosting column efficiency and reducing analysis times, but they were only the beginning. With Raptor™ LC columns, Restek chemists have combined the speed of SPP with the resolution of highly selective USLC® technology. This new species of chromatographic column allows you to more easily achieve peak separation and faster analysis times without expensive UHPLC instrumentation. Raptor™ LC columns provide the practicing analyst with the most powerful tools available for fast, efficient method development and increased sample throughput. And because they are from Restek, Raptor™ LC columns are backed by manufacturing and quality systems you trust along with internationally renowned Plus 1 service.

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Analyze Cosmetics and Personal Care Products for Ethylene Oxide and 1,4-Dioxane With New Restek® Standards

Restek PEG StandardsEthylene oxide and 1,4-dioxane are considered probable carcinogens by the U.S. EPA and International Agency for Research on Cancer respectively. These compounds are impurities in polyethylene glycol (PEG), but because of the potential danger they pose to humans, they must be removed before PEG can be used as a thickener / softener in cosmetics and personal care products.

Restek has formulated the only off-the-shelf suite of reference standards targeted toward the analysis of PEG-based products to make it easier for labs to verify the safety of shampoos, hand creams, and more. Produced with the specific concentrations needed in the industry, these newest Restek® certified reference materials (CRMs) are quantitatively tested to confirm their composition, and detailed support documentation is provided with each purchase. Because they are manufactured and QC-tested in Restek’s ISO-accredited labs, they also help satisfy ISO requirements.

With the release of these new ready-made reference standards, contract labs and manufacturers of PEG-based cosmetics and personal care products no longer need to order custom standards or make their own mixes.

www.restek.com/PEGstandards