Duplicate (laboratory)
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In the laboratory world, a duplicate, as defined by the United States Environmental Protection Agency via its SEDD Specification Version 5.2, is "a reanalysis of a regular sample done for quality control purposes. Data is expected to include an original client sample ID for each sample plus method and, potentially, a [relative percent difference] for each analyte. The original client sample ID identifies the original sample that was reanalyzed."[1]
References
- ↑ U.S. Environmental Protection Agency (March 2019). "Appendix A. Data Element Dictionary (DED)" (PDF). SEDD Specification Version 5.2. https://www.epa.gov/sites/default/files/2019-05/documents/sedd_spec_v5-2-march_2019_508.pdf. Retrieved 22 September 2022.
