News tagged with impurities

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Reducing gene-damaging impurities in medicines

Drug manufacturers have been adjusting to strict new government standards that limit the amount of potentially harmful impurities in medicine, according to the cover story of the current issue of Chemical & Engineering News ...

Sep 29, 2010
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Impurity

Impurities are substances inside a confined amount of liquid, gas, or solid, which differ from the chemical composition of the material or compound.

Impurities are either naturally occurring or added during synthesis of a chemical or commercial product. During production, impurities may be purposely, accidentally, inevitably, or incidentally added into the substance.

The level of impurities in a material are generally defined in relative terms. Standards have been established by various organizations that attempt to define the permitted levels of various impurities in a manufactured product. Strictly speaking, then, a material's level of purity can only be stated as being more or less pure than some other material.

This text uses material from Wikipedia, licensed under CC BY-SA

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