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24 April 2014
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| In this Issue |
Milton Lee on the Potential of Thermal Gradient Gas Chromatography (TGGC)
Thermal gradient gas chromatography (TGGC) was first developed in the 1960s to reduce the effects of peak broadening. With recent developments in technology, the technique is now being re-examined. In two new videos from LCGC TV, Milton L. Lee from Brigham Young University discusses the principles of TGGC, and the possible advantages of TGGC over traditional GC methods. |
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Novel Passive Sampling Using Silicone Wristbands
Silicone wristbands promoting charitable organizations and which are popular throughout the world as a fashion statement can be used to monitor exposure of individuals to contaminants in their local environment, according to a study published in the journal Environmental Science and Technology.1 The authors of the study propose silicone bands as passive samplers that can give a temporal and spatial picture of human contaminant exposure. More... |
The LCGC Blog: Measuring Quality...
Surrogates, Internal Standards, Isotopically labelled Standards, External Standards, Calibrants, QC Samples etc. etc. - our working lives are littered with checks to ensure that our instruments are giving us the correct results. And rightly so. But do we always use these checks correctly? Do we know what we are checking and why? Indeed, do we know how to design methods/procedures which employ a valid checking regime, often referred to as a Quality System? Let's find out. More... |
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Current features |
Current Practices and Considerations for a Stability-Indicating Method in Pharmaceutical Analysis
In the pharmaceutical industry, the demonstration of drug substance (DS) or drug product (DP) stability over the shelf life is an important aspect of the regulatory requirements. To fulfill this requirement, a stability-indicating method (SIM) must be developed and validated to separate and quantify both the active pharmaceutical ingredient (API) and its related compounds (process impurities and degradation products). Characteristics and relevant considerations for the development and validation of a SIM are discussed in this article. More... |
LC–MS-Based Methods for Identifying Drugs of Abuse in Oral Fluids for Forensic Toxicology Applications
This article reviews key developments and potential advantages of using LC–MS for forensic toxicology, including the option of using oral fluid samples. More... |
| Application Notes |
| Markes International |
Enhancing Aroma Profiling of Wine with GC–TOF–MS
Nick Bukowski, Laura McGregor, and Steve Smith
This application note demonstrates that BenchTOF time-of-flight mass spectrometers coupled with GC can provide a high-performance solution for the detection and quantitation of aromatic compounds in wine extracts. In particular, we show how the ChromCompare software Smodule allows rapid identification of differences between samples, and how Select-eV variable-energy ionization capability enhances both the sensitivity and selectivity of analyses. Learn more
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| Multimedia |
| Increasing Laboratory Efficiency through a Harmonized Compliance Solution |
| HPLC for Pharmaceutical Analyses: Succeed with Sample Filtration and Optimized Water Quality |
| High Resolution MS Screening and Quantitation Method for Contaminants in Dietary Supplements |
Need GC Troubleshooting Help?
 CHROMacademy announces the launch of the interactive GC Troubleshooter, sponsored by Thermo Scientific.
Building on the success of our ground breaking HPLC Troubleshooter, we are excited to announce the GC version. In 3 simple steps you will overcome your instrument, separation and quantitation issues. It’s completely free - so if you haven't tried our troubleshooter before you're in for a surprise!  Click Here |
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| The Column |
 The Global E-zine for Separation Scientists
The global edition of The Column is delivered twice monthly with a screen-optimized format designed to improve readability. Covering topical issues, application-based articles, market reports, tips and tricks, opinion pieces and interviews, The Column is a great information resource helping readers achieve better day-to-day working practices.
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Contact Us
Click here to contact Kate Mosford, managing editor.
Click here to contact Mike Tessalone, group publisher.
Click here to contact Lindsay Jones, sales manager.
Click here to contact Liz Mclean, sales executive.
Click here to subscribe to The Column, LCGC Europe’s and LCGC North America's digital publication. |
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