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Dolan addresses the problems associated with transfering a validated method from one laboratory to another and considers what changes are permissable.

The use of SLM extraction in speciation studies is discussed, especially for determining the form and bioavailable fractions of metals in enviromental and biological matrices.

MIPs are synthetic polymeric materials possessing specific cavities designed for a target molecule. The various parameters affecting extraction selectivity are discussed in the article and the potential of MIPs as selective sorbents reviewed.

The authors discuss zero-, first- and second-order data and describe the advantages of using second-order chromatographic data compared with the more traditional univariate or multivariate calibration. They demonstrate how its use can uncover much more information from chromatograms and spectra.

The authors consider the impact an analytical balance can have on the quality of chromatographic analyses.

A look back at the life of this chromatography pioneer.

Test for kristy.

Dionex Corporation. For more information, visit the company's website at www.dionex.com.

Delta Technical Products launched their new website, www.ChromAuctions.com.

Isotopic analysis of archaeological materials provides information on age and source, but analysis of single compounds isolated from artefacts can provide more accurate measurements and additional details. In this article, the authors provide a review of chromatographic separations of archaeological biomolecules for their analysis using accelerator mass spectrometry or isotope ratio mass spectrometry. The article concentrates primarily on studies involving carbon and nitrogen.