Metrological assessment of the methods for measuring the contents of acids and ion metals responsible for the exchangeable acidity of soils

Metrological characteristics—precision, trueness, and accuracy—of the results of measurements of the exchangeable acidity and its components by the potentiometric titration method were studied on the basis of multiple analyses of the soil samples with the examination of statistical data for the outl...

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Bibliographic Details
Published in:Eurasian soil science 2015-02, Vol.48 (2), p.169-176
Main Authors: Vanchikova, E. V, Shamrikova, E. V, Bespyatykh, N. V, Kyz”yurova, E. V, Kondratenok, B. M
Format: Article
Language:English
Subjects:
accuracy
Acidity
Acids
Analysis
Degassing of metals
Earth and Environmental Science
Earth Sciences
Geotechnical Engineering & Applied Earth Sciences
Hydrogen-ion concentration
Ions
Measurement
Metals
Methods
precision
Quality control
Quality management
soil
Soil acidity
Soil Chemistry
soil sampling
Soils
Studies
titration
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Summary:Metrological characteristics—precision, trueness, and accuracy—of the results of measurements of the exchangeable acidity and its components by the potentiometric titration method were studied on the basis of multiple analyses of the soil samples with the examination of statistical data for the outliers and their correspondence to the normal distribution. Measurement errors were estimated. The applied method was certified by the Metrological Center of the Uralian Branch of the Russian Academy of Sciences (certificate no. 88-17641-094-2013) and included in the Federal Information Fund on Assurance of Measurements (FR 1.31.2013.16382).
ISSN:1064-2293
1556-195X
DOI:10.1134/S1064229314120102