| Autor: |
Haubold, W., König, E., Schmid, R. |
| Zdroj: |
Fresenius' Zeitschrift für Analytische Chemie; 1988, Vol. 331 Issue 7, p713-720, 8p |
| Abstrakt: |
The purpose of this study is to find out whether the previously applied procedures for determining hot water soluble boron trace contents in soils using dianthrimide or azomethin-H can be substituted by ICP-AES. Research was made into chemical and spectral interferences which can arise in all three methods. The 249.678 nm boron emission line is not affected by the sample matrix indicated. The boron content from more than 60 extracts was determined using the three methods mentioned and the results were compared by means of regression calculations. It was found that ICP-AES and the dianthrimide procedure do not differ significantly, whereas the azomethin-H technique leads to somewhat higher values. The accuracy of the results achieved by means of ICP-AES was confirmed by a collaborative study. In order to determine the concentration of boron in soils in the range of 0-2 mg/kg the ICP-AES can be applied following the hot water extraction without further pretreatment of samples. This method is superior in particular when additional elements are to be considered in the soil. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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