December 1999

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

LC problems fall into one of two categories: those associated with instrumentation and those associated with the separation itself. Dolan explains how to identify which kind you have and how to approach correcting the problem.

Ouchi explains why getting to know the features of a desk-top database management system is the best way to learn the basics of database management.

This report summarizes activities performed during and after World War II at Oak Ridge National Laboratory and Iowa State University aimed at the separation of rare earths by ion-exchange chromatography on laboratory, pilot-plant, and industrial scales.

The authors compare their results in analyzing styrene–butadiene block copolymers by gel permeation chromatography with other methods, such as Fourier transform infrared spectroscopy and pyrolysis gas chromatography.

More researchers are discovering that buying used laboratory equipment can be an effective way to reduce costs. An excellent supply of high-quality, used chromatography equipment is available on the market as a result of mergers and consolidations in biotechnology companies and downsizing in the environmental industry.