LCGC Europe-12-01-2013

LCGC Europe

Novel Sorbents for Solid–Liquid Extraction

December 01, 2013

Sample Preparation Perspectives

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In this instalment Ron Majors discusses new sample preparation media that could result in improved or even "breakaway" performance for solid–liquid extractions. Some of these sorbents are based on new novel bonded phases to existing media while others are based on new extraction phases, such as carbon on silica, other metal oxides, or polymeric media. With resulting new selectivities, sample preparation could be performed more quickly in fewer steps than typical of usual adsorbents

Sensitivity of Comprehensive Two-dimensional Gas Chromatography (GCXGC) Versus One-dimensional Gas Chromatography (1D GC)

December 01, 2013

Features

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In this article, the sensitivity of two-dimensional gas chromatography coupled to two different detectors - a time-offl ight mass spectrometer (GCXGC–TOF-MS) and a fl ame ionization detector (GC?GC–FID) - was compared to the sensitivity of conventional one-dimensional gas chromatography (GC–TOF-MS and GC–FID) by determining method detection limits (MDLs) for a series of different compounds with different polarities.

Optimizing GC–MS Methods

December 01, 2013

The Essentials

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There are many "minor" variables in GC–MS analysis that can be optimized to improve selectivity or sensitivity. Knowing how to manually optimize the detector settings leads to better quality data.

Vol 26 No 12 LCGC Europe December 2013 Regular Issue PDF

December 01, 2013

Issue PDF

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Click the title above to open the LCGC Europe December 2013 regular issue, Vol 26 No 12, in an interactive PDF format.