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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Analyte
Substance (usually a residue) for which an analysis is being performed. (TR29) (TR49) (TR70) A specific chemical moiety being measured, which can be intact drug, biomolecule or its derivative, impurity, and/or excipients in a drug product. [Synonym: measurand] (TR57)
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Coupon
A small, generally flat portion of a defined material of construction (such as stainless steel or PTFE) and of a defined surface finish, typically used for laboratory cleaning evaluations and/or for laboratory sampling recovery studies. (TR29) (TR49)
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Dedicated Equipment
Equipment used exclusively for the manufacture of only one drug product, bulk drug substance, or intermediate. (TR29)
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Free Drained Equipment
No visible water pool in the equipment or line when viewed under appropriate lighting conditions (but may contain water droplets). (TR29)