Concentration

Definition

noun

(1) The measure of the amount of a sub-component (especially solute) in a solution.

(2) The ratio of the mass or volume of a substance (solute) to the mass or volume of the solvent or solution.

(3) The increase of strength of a pharmaceutical preparation.

(4) The act or process of focusing or fixing of attention.

(5) The product of something concentrated.


Supplement

In chemistry, concentration of a solute in a solution can be done by chemical means, e.g. evaporation of the solvent, diffusion, and purification. In pharmacology, concentration of a pharmaceutical preparation can be done by extraction, precipitation and drying of the crude active agent.

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