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  1. Dictionary
    impurity
    /ɪmˈpjʊərɪti/

    noun

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    More definitions, origin and scrabble points

  2. en.wikipedia.org › wiki › Chemical_ImpurityChemical impurity - Wikipedia

    Jul 12, 2024 · In chemistry and materials science, impurities are chemical substances inside a confined amount of liquid, gas, or solid. They differ from the chemical composition of the material or compound. [1] Firstly, a pure chemical should appear in at least one chemical phase and can also be characterized by its phase diagram.

  3. www.molecularcloud.org › p › impurities-definitions-types-and-nmr-analysisImpurities: Definitions, Types, and NMR Analysis

    Jun 25, 2024 · An impurity is defined as a foreign element or substance present within a batch of material, which is not the primary constituent and may alter the intended effect or properties of the material.

  4. www.answers.com › What_are_trivalent_and_pentavalent_impuritiesWhat are trivalent and pentavalent impurities? - Answers

    Oct 4, 2023 · Best Answer. Doping is the process of adding impurity atoms to intrinsic silicon or germanium to improve the conductivity of the semiconductor. The term impurity is used to describe the doping...

  5. www.gotquestions.org › sexual-immoralityWhat is sexual immorality? | GotQuestions.org

    Mar 19, 2024 · Sexual immorality is the “selling off” of sexual purity and involves any type of sexual expression outside the boundaries of a biblically defined marriage relationship (Matthew 19:4–5).

  6. www.tga.gov.au › resources › resource18.2 Related impurities in drug substances and drug products

    Nov 8, 2023 · Any related substance (identified or unidentified) that is not listed in the monograph is expected to comply with the relevant ICH threshold, or be otherwise qualified. Newer European Pharmacopoeia (Ph. Eur.) monographs include two separate lists of impurities: qualified and other detectable.

  7. link.springer.com › referenceworkentry › 10Defects and Impurities in Silicon Materials | SpringerLink

    Nov 28, 2023 · In semiconductors, the impurity atoms incorporated to define the electrical resistivity are generally located at substitutional sites. At a given temperature, the equilibrium concentration of an impurity in the crystal is limited by the solid solubility.

  8. kymos.com › news › impurity-profilingImpurity Profiling: Characterization of unknown impurities

    Jan 23, 2024 · Going by the WHO definition, an impurity is “any component present in the drug substance or drug product that is not the desired product, a product-related substance, or excipient including buffer components. It may be either process- or product-related”.

  9. www.baeldung.com › cs › impurity-entropy-gini-indexNode Impurity in Decision Trees | Baeldung on Computer Science

    Mar 18, 2024 · Informally, impurity is a measure of homogeneity of the labels at the node at hand: There are different ways to define impurity. In classification tasks, we frequently use the Gini impurity index and Entropy.

  10. gmpinsiders.com › impurities-in-pharmaceuticalsImpurities In Pharmaceuticals: Types, Regulations And Strategies

    Dec 17, 2023 · Impurities are unwanted chemicals that can arise during the synthesis, formulation, or ageing of active pharmaceutical ingredients (APIs) and finished products; therefore, it is crucial to carefully identify and manage these substances (impurity profiling).

  11. synthinkchemicals.com › impurity-profiling-in-pharmaceuticals-ensuring-safetyImpurity Profiling in Pharmaceuticals: Ensuring Safety and...

    Jul 6, 2023 · Impurity Profiling. The Science Behind Impurity Profiling: Unveiling the Hidden Risks in Pharmaceuticals. Impurity profiling plays a crucial role in pharmaceutical product development and quality control. It involves the identification, quantification, and characterization of impurities present in drug substances and drug products.