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Details van artikel 34 van 164 gevonden artikelen
| Titel: |
Determination of exchangeable acidity, carbonate ions and change of buffer in triethanolamine-buffered solutions percolated through soil samples containing carbonates |
| Auteur: |
Deller, B. |
| Verschenen in: |
Communications in soil science and plant analysis |
| Paginering: | Jaargang 12 (1981) nr. 2 pagina's 161-177 |
| Jaar: |
1981 |
| Inhoud: |
The content of dissolved carbonates and exchanged acidity in triethanolamine-buffered BaCl2-solutions which were percolated through soil samples containing carbonates is determined by two titration-procedures to pH 4.0 and 10.25. because a single titration value gives no information of the amounts of both ionic species in solution. The amount of dissolved carbonates calculated on the bases of these titration-procedures, however, is smaller than that determined by measuring the content of inorganic carbon in solution. The difference is attributed to the sorption of protonized triethanolamine-buffer during percolation, which leads to an underestimation of CEC when measured by re-exchanged Ba++, whereas the amount of exchangeable bases is overestimated due to dissolution of carbonates. The amount of exchanged acidity calculated from the data obtained is surprisingly high and is at least partly attributed to the existence of HCO3- -sorbed on the surface of (wet) soils. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 34 van 164 gevonden artikelen
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