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24 September 2015 |
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The Acid Test — More Useful Calculations for HPLC Eluent Preparation
Mobile-phase preparation for LC–MS requires careful consideration to ensure the correct pH values and concentrations are obtained. This blog installment details the difference between using volume percent and weight percent to make up 0.1% solutions of trifluoroacetic acid and the effect it has on the pH. |
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LCGC TV: Mary J. Wirth on Slip Flow, Part I — How it works
In this video from LCGC TV, Mary J. Wirth of Purdue University explains the phenomenon of slip flow: what it is, how it can improve separations — particularly of proteins and monoclonal antibodies — and where it may take us in the future. |
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Column Problems Everywhere
No matter where you live or who you work for, you're likely to encounter one or more of these LC column problems at some point. |
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Photo Credit: Christine Schneider/Getty Images |
Modern Sample Preparation Methods for POPs
Persistent organic pollutants (POPs) pose an on-going threat to human health, but are often trapped within environmental samples, thereby making analysis challenging. Bethany Degg of The Column spoke to Lourdes Ramos from the Department of Instrumental Analysis and Environmental Chemistry Institute of Organic Chemistry of the CSIC (Madrid, Spain) about her innovative research on new sample preparation methods for POPs. |
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Photo Credit: Brian Gordon Green/Getty Images |
News: GC–MS Analysis of Laser-Degraded Blue Tattoo Ink
Laser irradiation of blue tattoo ink can create toxic byproducts — including hydrogen cyanide (HCN) — according to new research published by scientists at the German Federal Institute for Risk Assessment. Pyrolysis gas chromatography–mass spectrometry (Py–GC–MS) was performed on samples of copper phthalocyanine blue to predict the decomposition products resulting from irradiation, as part of a wider on-going project assessing the safety of tattoo inks. |
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Upcoming Webcasts
The Utilization of LC–MS–MS in Development of Solid-Phase Extraction Methods
Friday, September 25, 2015
11:00 am EDT – 12:00 pm EDT
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Streamlining Routine Workflows in the Environmental Laboratory
Part 1, Live: Wednesday, September 30, 2015
11 am EDT/ 8 am PDT/ 4 pm BST/ 5 pm CEST
Part 2, Live: Wednesday, Oct. 28, 2015
11 am EDT/ 8 am PDT/ 3 pm GMT/ 4 pm CET
Register >>
Overview of Hydrophilic Interaction Chromatography (HILIC)
Tuesday, October 20, 2015
2:00—3:00 pm EDT
Register >>
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