matrix effect

matrix effect

(1) The difference between the value of an analyte from a fresh patient specimen and from stabilised processed reference materials.
(2) The influence of a sample property—other than the level of the substance or property being measured in the analyte—on a measurement, and thus on the value of the measurand. Matrix effects include physicochemical, mechanistic and analytical interferences, and the presence of isoforms of the substance being measured.
References in periodicals archive ?
Breath pad recovery, overall extraction efficiency, and matrix effect for cannabinoids in breath collected with the SensAbues device.
In order to reduce matrix effect in LC/MS/MS, the following step is necessary:
Calibration Curves for Quantitative Analysis and Matrix Effect. Two calibration curves were built in HPLC-MS/MS, in MRM mode.
Q Do all control materials have a matrix effect, even if derived from fresh-frozen human plasma?
A validation of this method was in accordance with the FDA guidelines, including selectivity, linearity, precision, accuracy, recovery, matrix effect, and stability [25].
A value of 100% indicates that the response in the neat samples and the matrix extracts were the same and no absolute sample matrix effect was observed.
The items of validation included selectivity, matrix effect, linearity, precision, accuracy, recovery rate, and stability.
Simulating the aesthetics, viscosity, flow dynamics, and wetting properties of fresh whole blood, Sugar-Chex Linearity performs like whole blood, eliminating the matrix effect often seen in aqueous products.
Extraction Recovery and Matrix Effect. The matrix effect was assessed by using the postextraction spike method as indicated by RSC guideline for LC-MS measurements [30].
The terms "matrix-related bias" and "matrix effect" are used to refer to the component of bias that is caused by noncommutability.
The method was validated in terms of linearity, sensitivity, precision, accuracy, recovery, matrix effect, and stability and successfully applied to pharmacokinetic and tissue distribution studies in female healthy Sprague-Dawley rats following a single oral administration of Herba Epimedii extract (containing 15 mg/g epimedin B).