PDA Technical Glossary
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PDA Technical Glossary

PDA Technical Reports are highly valued membership benefits because they offer expert guidance and opinions on important scientific and regulatory topics and are used as essential references by industry and regulatory authorities around the world. These reports include terms which explain the material and enhance the reader’s understanding.

The database presented here includes the glossary terms from all current technical reports. The database is searchable by keyword, topic, or by technical report. Each definition provided includes a link to the source technical report within the  PDA Technical Report Portal.

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M TR 57-2: Analytical Method Development
Matrix Effect
The direct or indirect alteration or interference in response due to the presence of additional sample components due to sample preparation (for analysis) or other interfering substances in the sample (product related excipients or residuals). (TR57) (TR57-2)
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Method Lifecycle
All stages in the life of a method, from the initial development through marketing, until the method’s discontinuation. (TR57-2)
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Method Validation
A formal, archived demonstration of the analyti­cal capacity of an assay that provides justification for use of the assay for an intended purpose. (TR56) A formal, archived demonstration of the analytical capacity of an assay that provides justification for use of the assay for an intended purpose. Validations are conducted prospectively according to a written, approved plan that states acceptance criteria. (TR57) (TR57-2)
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