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Glossary |
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| Term | Definition | Article | Siehe auch |
|---|---|---|---|
| cancerogenicity: Wikipedia: cancerogenicity |
The potential of a chemical substance to induce cancer (uncontrolled cell proliferation) in an organism. | mutagenicity | |
| capillary gas chromatography: Wikipedia: capillary gas chromatography |
A separation technique as in gas chromatography but using thin glass or silca capillaries coated with stationary phase (inner diameter: 0.2 - 1 mm, length: 5 - 50 m) | gas chromatography | |
| catalyst: Wikipedia: catalyst |
A substance that accelerates a chemical reaction without affecting the chemical equilibrium. The activation energy of the reaction is lowered. By definition a catalyst is not used up at all or only in extremely small amounts during a reaction. Catalysts can also direct the stereoselectivity of the reaction. | ||
| chromatogram: Wikipedia: chromatogram |
The graphical output for a chromatographic separation, where the detector signal versus time is shown. | ||
| chromatography: Wikipedia: chromatography |
A physicochemical method for separation of substances by differential distribution between a mobile and a stationary phase and by different adsorption to the stationary phase. | mobile phase, stationary phase | |
| chronic toxicity: Wikipedia: chronic toxicity |
Toxicity of repeated (usually low) doses of a chemical spread over a longer exposure time, mostly for longer than six months. | acute toxicity | |
| co-product: | A chemical product that is produced besides the wanted main product according to a stoichiometric equation. In a reaction according to A + B = C + D, C is the main product and D is the co-product (often a salt). In some cases an alternative choice for the reaction type can avoid co-products. | by-product, couple product | |
| couple product: | Product which is produced besides the wanted main product, either inevitable, planned or not planned. The proportion of product to couple product is not neccessarily stoichiometrically defined. | co-product, by-product |