Title: multiplicative matrix effect
Long Title: IUPAC Gold Book - multiplicative matrix effect
DOI: 10.1351/goldbook.08035
Status: current

Definition
Matrix effect that is proportional to the measured quantity value of the measurand.

Notes
1) A multiplicative matrix effect can be compensated for by following a measurement procedure with standard addition.
2) A multiplicative matrix effect affects the slope, not the intercept, of a linear calibration curve.
3) The effect is sometimes termed "rotational matrix effect" or "proportional interference".
4) A multiplicative matrix effect may originate from non-analyte components of the measurement standard if these contribute to the signal attributed to the analyte.

Related Term
- measurement procedure with standard addition: https://goldbook.iupac.org//terms/view/08030

Source
- PAC, 2021, 93, 997. 'Metrological and quality concepts in analytical chemistry (IUPAC Recommendations 2021)' on page 1013 (https://doi.org/10.1515/pac-2019-0819)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/08035/html
- json: https://goldbook.iupac.org/terms/view/08035/json
- xml: https://goldbook.iupac.org/terms/view/08035/xml

Citation: Citation: 'multiplicative matrix effect' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.08035
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Accessed: 2025-11-14T20:24:38+00:00