Environmental Analysis

The authors propose the use of supersaturated experimental designs for composite sampling and demonstrate their efficiency and economy in the environmental screening of pesticide residues.

New miniaturized liquid-membrane extraction designs are especially suited for speciation studies of metal ions in small amounts of biological fluids.

The authors evaluted the performance of a high-capacity anion-exchange column specifically designed for use with hydroxide eluents for fulfilling the requirements of EPA Method 300.0 Part A and compared the results with data generated with an anion-exchange column using carbonate eluents.

This column describes the principles of stir-bar sorptive extraction and presents some typical applications.

The authors discuss two environmental applications for accelerated solvent extraction.

The author configured a purge-and-trap GC-MS system that simultaneously improved chromatographic resolution and reduced analysis time.