Multiple linear regression modeling with values below a lower limit of quantification – a statistical method comparison [PDF]
Background Missing values occur in almost all real-world medical data. Sometimes, more information is available for the missing values due to technical measurement limits.
Lorena Hafermann +4 more
doaj +3 more sources
Methods to determine limit of detection and limit of quantification in quantitative real-time PCR (qPCR). [PDF]
Quantitative Real-Time Polymerase Chain Reaction, better known as qPCR, is the most sensitive and specific technique we have for the detection of nucleic acids. Even though it has been around for more than 30 years and is preferred in research applications, it has yet to win broad acceptance in routine practice.
Forootan A +5 more
europepmc +5 more sources
Hypocretin-1 measurements in cerebrospinal fluid using radioimmunoassay: within and between assay reliability and limit of quantification. [PDF]
van der Hoeven AE +7 more
europepmc +3 more sources
Evaluation of bias in weighted residual calculations when handling below the limit of quantification data using Beal's M3 method. [PDF]
Jaber MM, Cheng S, Brundage RC.
europepmc +3 more sources
Quantification of Limit Cycle Oscillations in Nonlinear Aeroelastic Systems with Stochastic Parameters [PDF]
This paper presents an analytical feature for limit cycle oscillation (LCO) in the nonlinear aeroelastic system of an airfoil, with major emphasis on its applications in LCO quantification.
C. C. Cui, J. K. Liu, Y. M. Chen
doaj +2 more sources
Limits to the quantification of local climate change [PDF]
We demonstrate how the fundamental timescales of anthropogenic climate change limit the identification of societally relevant aspects of changes in precipitation. We show that it is nevertheless possible to extract, solely from observations, some confident quantified assessments of change at certain thresholds and locations. Maps of such changes, for a
S. C. Chapman +2 more
openalex +7 more sources
Application of Static Headspace GC-MS Method for Selective 1,4-Dioxane Detection in Food Additives
Efficient detection methods must be developed for 1,4-dioxane due to its suspected status as a human carcinogen, which is highly mobile in food and environmental resources.
Myung-Chan Kim +9 more
doaj +1 more source
In this work, a cyclic voltammetry analysis for the detection of Ascorbic Acid (AA) based on a carbon-clay paste electrode modified with titanium dioxide (CPEA/TiO2) is presented.
Bakary Tigana Djonse Justin +2 more
doaj +1 more source
The handling of data on food contamination frequently represents a challenge because these are often left-censored, being composed of both positive and non-detected values.
Alessandro Feraldi +5 more
doaj +1 more source
Determination of the limit of quantification of the calorimeter using a mixture of benzoic acid and silicon dioxide [PDF]
In recent years quality control has received a great attention in laboratory work. Implementation of the international standard ISO/IEC 17025 is necessary for any laboratory that wishes to establish quality control in its work.
Krstić Vesna R. +5 more
doaj +1 more source

