Titration and potentiometric determination of soil organic matter carbon
1996
Krejcova, J. | Kralova, M. | Ruzek, P. (Vyzkumny Ustav Rostlinne Vyroby, Prague-Ruzyne (Czech Republic)) | Zikov, I.
The quantitative determination using the dichromate-wet combustion finished by an Fe2+ titration by help of an indicator is a commonly used procedure, especially for routine analyses in soil testing laboratories. The results of soil analyses done in our laboratory were 0.99-1.08 % Cox in eutric cambisol from the locality Pernolec. The standard deviation was 0.01 with a variation coefficient of 0.02 %. The correlation coefficient was calculated 0.97 (n=50). The modified potentiometric determination of soil organic matter was used as a comparative method for the same type of soil. The results of analyses were 1.08-1.11 % Cox for the same soil samples as mentioned above. The standard deviation was 0.01 with a variation coefficient of 0.02 %. The correlation coefficient was calculated 0.99 (n=50).
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