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English
Noun
LOQ (plural LOQs)
- (chemistry, initialism) Limit of quantification (or limit of quantitation); the lowest concentration of a substance that can be accurately measured under specified experimental. conditions.
2003, Paul De Bièvre, Helmut Günzler, Measurement Uncertainty in Chemical Analysis, →ISBN, page 253:Therefore LOD and LOQ evaluation is only necessary for water.
2004, James W. Robinson, Eileen M. Skelly Frame, George M. Frame II, Undergraduate Instrumental Analysis, →ISBN, page 59:For this reason, many regulatory agencies define another limit, the limit of quantitation (LOQ), which is higher than the LOD and should have better precision.
2005, Jack Cazes, Encyclopedia of Chromatography - Volume 2, →ISBN, page 1448:It is generally accepted that the LOQ is linked to method performance expectations including accuracy and precision.
2016, Piotr Konieczka, Jacek Namiesnik, Quality Assurance and Quality Control in the Analytical Chemical Laboratory, →ISBN:The required precision for the LOQ is determined (usually = 10%), and for this value the concentration equal to the LOQ is read on the graph.
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