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- the fact that a substance is dirty or lower in quality because it is mixed with another substance, or something that causes this: Impurities are removed from the blood by the kidneys. The impurity of the water is a health risk.
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The meaning of IMPURITY is something that is impure or makes something else impure. How to use impurity in a sentence.
Impurities in pharmaceutical substances are unwanted chemicals that remain with the active pharmaceutical ingredients (APIs) or develop during formulation or storage. These can affect the safety, efficacy, and stability of pharmaceutical products.
the fact that a substance is dirty or lower in quality because it is mixed with another substance, or something that causes this: Impurities are removed from the blood by the kidneys. The impurity of the water is a health risk. SMART Vocabulary: related words and phrases. Dirt & untidiness.
- Introduction
- Sources of Impurities
- Effect of Impurities
- Permissible Impurities in Pharmaceutical Substances
- Test For Purity
The substances that are used in pharmaceuticals should be pure enough to be used safely. It is rather difficult to obtain an absolutely pure substance. We find substances and chemicals, with varying degrees of purity. For example, substances like cane sugar (sucrose), dextrose, common salt and many inorganic salts are found with over 99% purity whi...
The type and amount of impurity present in chemicals or pharmaceutical substances depends upon several factors: Raw Material Employed in Manufacture: When substances or chemicals are manufactured, the raw materials from which these are prepared often contain impurities. These impurities get incorporated into the final product. Impurities like arsen...
It can be seen that, almost pure substances are difficult to get and that some amount of impurity is always present in the material. The impurities present in the substances may affect as follows: 1. Impurities which have a toxic effect can be injurious when present above certain limits. 2. Impurities, even when present in traces, may show a cumula...
Since it is not possible to avoid impurities, it is necessary to have substances that are reasonably pure. The pharmacopoeial committee takes the following points into consideration with respect to the problem caused by impurities in substances. 1. For impurities that are of harmful type:such as lead, arsenic, etc., a low permissible limit is presc...
Pharmacopoeias of various countries prescribe ‘tests for purity, for substances which are to be used for medical purposes. The so-called ‘tests for purity’ means detecting impurities in the substances and pharmacopoeias fix the limits of tolerance for these impurities. The governing factor for these tests is to determine how much impurity is likely...
Index of 750 medical roots, prefixes, and suffixes commonly used in medical terminology. When available, Latin and Greek roots are provided after English definitions.
1. The quality or condition of being impure, especially: a. Contamination or pollution. b. Lack of consistency or homogeneity; adulteration. c. A state of immorality; sin. 2. Something that renders something else impure; an inferior component or additive. American Heritage® Dictionary of the English Language, Fifth Edition.
By avoiding jargon, the dictionary offers concise and easily accessible information for users searching for descriptions of over-the-counter or prescription medications, medical abbreviations, test procedures, medical research topics, or illnesses.
