Sample Preparation

The authors introduce hydrophilic interaction capillary electrochromatography as a capillary column technique for the separation of polar compounds.

Highly selective sorbents for solid-phase extraction (SPE) are desirable tools for the development of selective and sensitive methods for trace analysis. Molecular imprinting is an emerging technique that can yield analyte- or group-selective polymeric sorbents.

This installment of "Sample Prep Perspectives" discusses microdialysis sampling and the opportunities and challenges it presents. The guest authors look at microdialysis theory and equipment and describe potential applications...

Autosamplers can be great time-savers, but they have their own set of problems...

Guest author Reg Cross discusses strategies for collecting samples from large masses of material. He also describes the problems associated with acquiring truly representative samples for analysis.

Current sample preparation procedures for LC–MS as applied to samples from biological matrices.

To accommodate high-throughput analysis, analysts are using 96-well plates, as well as some unfamiliar accessory products. This column describes these products and tells readers how to use them in their laboratories.