Sample Preparation

Mar 01, 2017
LCGC North America
We explain the principles of EC and demonstrate its use to enrich anionic pollutants and cationic drugs in environmental samples.
Mar 01, 2017
LCGC North America
New extraction techniques can improve the accuracy and precision of analytical results and simplify analytical procedures.
Nov 01, 2016
LCGC North America
Dried blood sampling shows great promise, but inconsistencies resulting from hematocrit effects must be resolved and regulatory acceptance is still lacking.
Aug 01, 2016
LCGC North America
The rise of microsampling raises questions about representative sampling.
May 01, 2016
LCGC North America
Many of this year’s new products fit into recently identified trends, but one major driver of advances was not in our forecasts.
Mar 01, 2016
LCGC North America
A comparison of the results from a new survey on sample preparation techniques to those of previous surveys, from 1991 to 2013, reveals some interesting trends.
Nov 01, 2015
Special Issues
A survey of LCGC readers on sample preparation techniques and methodology investigated trends in technologies being used, sample loads, sample sizes, automation, the use of SPE devices (cartridges, disks, plates, tips), SPE chemistries, selection criteria, and problems encountered.
Nov 01, 2015
Special Issues
By LCGC Editors
This first installment of the “Sample Prep Perspectives” column presents an overview of the primary manual and automated sample preparation techniques—methods that are much the same as those in use today.
May 01, 2015
LCGC North America
As expected, the new products introduced in the past year in the area of chromatographic sample preparation, while somewhat limited, mirror the current development in the field.
Jan 01, 2015
LCGC North America
When pyrolyzed, macromolecules will decompose into smaller fragments that can have the appropriate volatility for gas chromatography (GC) separation and analysis.
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