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- Detection_limit abstract "In analytical chemistry, the detection limit, lower limit of detection, or LOD (limit of detection), is the lowest quantity of a substance that can be distinguished from the absence of that substance (a blank value) within a stated confidence limit (generally 1%). The detection limit is estimated from the mean of the blank, the standard deviation of the blank and some confidence factor. Another consideration that affects the detection limit is the accuracy of the model used to predict concentration from the raw analytical signal.There are a number of different "detection limits" that are commonly used. These include the instrument detection limit (IDL), the method detection limit (MDL), the practical quantification limit (PQL), and the limit of quantification (LOQ). Even when the same terminology is used, there can be differences in the LOD according to nuances of what definition is used and what type of noise contributes to the measurement and calibration.The figure below illustrates the relationship between the blank, the limit of detection (LOD), and the limit of quantification (LOQ) by showing the probability density function for normally distributed measurements at the blank, at the LOD defined as 3 * standard deviation of the blank, and at the LOQ defined as 10 * standard deviation of the blank. For a signal at the LOD, the alpha error (probability of false positive) is small (1%). However, the beta error (probability of a false negative) is 50% for a sample that has a concentration at the LOD (red line). This means a sample could contain an impurity at the LOD, but there is a 50% chance that a measurement would give a result less than the LOD. At the LOQ (blue line), there is minimal chance of a false negative.".
- Detection_limit thumbnail LOD.png?width=300.
- Detection_limit wikiPageExternalLink LOD.html.
- Detection_limit wikiPageExternalLink LLD05.html.
- Detection_limit wikiPageID "2597750".
- Detection_limit wikiPageLength "6668".
- Detection_limit wikiPageOutDegree "15".
- Detection_limit wikiPageRevisionID "677671569".
- Detection_limit wikiPageWikiLink Analytical_chemistry.
- Detection_limit wikiPageWikiLink Category:Analytical_chemistry.
- Detection_limit wikiPageWikiLink Category:Measurement.
- Detection_limit wikiPageWikiLink Chemical_Reaction.
- Detection_limit wikiPageWikiLink Chemical_reaction.
- Detection_limit wikiPageWikiLink Confidence_interval.
- Detection_limit wikiPageWikiLink IATA_code.
- Detection_limit wikiPageWikiLink International_Air_Transport_Association_code.
- Detection_limit wikiPageWikiLink Matrix_(chemical_analysis).
- Detection_limit wikiPageWikiLink Mean.
- Detection_limit wikiPageWikiLink Standard_deviation.
- Detection_limit wikiPageWikiLink Students_t-distribution.
- Detection_limit wikiPageWikiLinkText "Detection limit".
- Detection_limit wikiPageWikiLinkText "Detection_limit".
- Detection_limit wikiPageWikiLinkText "Limit of Determination".
- Detection_limit wikiPageWikiLinkText "Limit of detection".
- Detection_limit wikiPageWikiLinkText "Method Detection Limit".
- Detection_limit wikiPageWikiLinkText "detection limit".
- Detection_limit wikiPageWikiLinkText "detection limits".
- Detection_limit wikiPageWikiLinkText "detection of playfield limits".
- Detection_limit wikiPageWikiLinkText "limit detect".
- Detection_limit wikiPageWikiLinkText "limit of detection".
- Detection_limit wikiPageWikiLinkText "limits of detection".
- Detection_limit wikiPageWikiLinkText "quantitation limit".
- Detection_limit hasPhotoCollection Detection_limit.
- Detection_limit wikiPageUsesTemplate Template:BranchesofChemistry.
- Detection_limit wikiPageUsesTemplate Template:Redirect.
- Detection_limit wikiPageUsesTemplate Template:Reflist.
- Detection_limit wikiPageUsesTemplate Template:Wide_image.
- Detection_limit subject Category:Analytical_chemistry.
- Detection_limit subject Category:Measurement.
- Detection_limit hypernym Quantity.
- Detection_limit type Science.
- Detection_limit comment "In analytical chemistry, the detection limit, lower limit of detection, or LOD (limit of detection), is the lowest quantity of a substance that can be distinguished from the absence of that substance (a blank value) within a stated confidence limit (generally 1%). The detection limit is estimated from the mean of the blank, the standard deviation of the blank and some confidence factor.".
- Detection_limit label "Detection limit".
- Detection_limit sameAs Nachweisgrenze.
- Detection_limit sameAs Límite_de_detección.
- Detection_limit sameAs Limite_de_détection.
- Detection_limit sameAs Limite_di_rivelabilità.
- Detection_limit sameAs 検出限界.
- Detection_limit sameAs Limite_de_detecção.
- Detection_limit sameAs m.07qpjb.
- Detection_limit sameAs Предел_обнаружения.
- Detection_limit sameAs Q900165.
- Detection_limit sameAs Q900165.
- Detection_limit wasDerivedFrom Detection_limit?oldid=677671569.
- Detection_limit depiction LOD.png.
- Detection_limit isPrimaryTopicOf Detection_limit.