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

• Published in: Eurasian soil science Vol. 48; no. 2; pp. 169 - 176
• Main Authors: Vanchikova, E. V, Shamrikova, E. V, Bespyatykh, N. V, Kyz”yurova, E. V, Kondratenok, B. M
• Format: Journal Article
• Language: English
• Published: Moscow Springer-Verlag 01.02.2015; Pleiades Publishing; Springer; Springer Nature B.V
• 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; exchangeable acidity of soils; metrology
• ISSN: 1064-2293; 1556-195X
• DOI: 10.1134/S1064229314120102

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).