Added Limit of Quantification (LOQ) for services and analyses #2682
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For formal scientific, technical, or regulatory contexts, Limit of Quantification (LOQ) is better choice than Quantification Limit (QL) as it aligns with standard usage and is more widely recognized. LOQ is the term standardized by international organizations such as IUPAC, ISO, and regulatory agencies like the FDA and EPA.
xispa
changed the title
ramonski
approved these changes
Mar 11, 2025
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Description of the issue/feature this PR addresses
This Pull Request makes possible to define the Limit of Quantification (LOQ)1 for services and analyses, so that:
Detected but < LLOQis displayed when the result below the Lower Limit of Quantification (LLOQ), but above the Lower Limit of Detection (LLOD/LDL).Not detectedis displayed when the Lower Limit of Detection (LLOD) is below the Lower Limit of Quantification (LLOQ) and the result is lower than both.< LLODis displayed when the Lower Limit of Detection (LLOD) equals to the Limit of Quantification (LLOQ) and the result is lower than both.LOQ,LLOQ,ULOQ,BELOWLOQ,BELOWLLOQ,ABOVEULOQCurrent behavior before PR
Is not possible to define the Limit of Quantification (LOQ), but Lower and Upper Limits of Deteciton only.
Desired behavior after PR is merged
Is possible to define the Limit of Quantification (LOQ), along with Lower and Upper Limits of Deteciton only.
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I confirm I have tested this PR thoroughly and coded it according to PEP8
and Plone's Python styleguide standards.
Footnotes
Term "Quantification Limit" is used as well, with the acronym "QL". However, LOQ is the term standardized by international organizations such as IUPAC, ISO, and regulatory agencies like the FDA and EPA. LOQ is widely used in scientific literature, analytical chemistry and regulatory guidelines as well. Therefore, for formal scientific, technical, or regulatory contexts, LOQ is the better choice, as it aligns with standard usage and is more widely recognized. ↩