laboratoryselected

Laboratory-selected is a descriptive term used to indicate that an item has been chosen according to predefined laboratory criteria to meet specified quality and suitability. It is commonly applied to biological materials such as cell lines, microbial strains, and reagents, as well as research-grade materials like DNA constructs and antibodies, and to materials used in manufacturing contexts where controlled provenance is important.

The selection process typically involves controlled conditions, standardized protocols, and thorough documentation. Selection criteria may include purity, viability, genetic identity, absence of contaminants, stability, and traceability. Methods can include phenotypic screening, genotypic validation, growth performance tests, and quality-control assays.

Laboratory-selected materials offer advantages in reproducibility, consistency, and auditable provenance. They are often accompanied by documented lot information, handling and storage conditions, and compliance with relevant standards or regulatory requirements. In many cases, such materials are subjected to quality-control checks and may be integrated into larger quality-management systems.

Limitations may include higher cost, longer lead times, and the possibility that performance in laboratory conditions does not fully predict real-world performance. The term is widely used in product catalogs, experimental protocols, and quality documentation to distinguish items that have been vetted in a laboratory setting from those selected by non-laboratory methods.