Solid-phase extraction (SPE) has been commercially available for nearly 25 years and is still finding new applications. Growth of this technique appears to be largely a function of the vendors' capability to provide specific application support, especially in clinical sciences, pharmaceuticals, toxicology, pesticides and residues analysis.
A market profile of Chromatography Data Systems (CDS's) using data extracted and adapted from SDi's recently published Market Analysis and Perspective (MAP) report titled High Performance Liquid Chromatography: Competing Techniques Setting the Bar Higher.
In continuous flow analysis (CFA), a sample is injected into a flowing carrier solution passing rapidly through small-bore tubing. The sample is mixed with a reagent, which reacts with the sample to develop a color and determine the sample concentration. The use of carefully controlled flow conditions ensures that the color development reaction is reproducible, so that the color measurement need not wait until the reaction has gone to completion.