Determination of the hot-water-soluble boron content in soils using inductively coupled plasma atomic emission spectrometry

Publikations-Art

Zeitschriftenbeitrag

Autoren

Haubold, W.; Koenig, E.; Schmid, R.

Erscheinungsjahr

1988

Veröffentlicht in

Fresenius' Z. Anal. Chem.

Band/Volume

331/7

Seite (von - bis)

713-20

The purpose of this study is to find out whether the previously applied procedures for detg. hot-water-sol. boron trace contents in soils using dianthrimide or azomethine-H can be replaced by inductively coupled plasma-at. emission spectrometry (ICP-AES). Research was made into chem. 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 exts. was detd. using the three methods mentioned and the results were compared by means of regression calcns. ICP-AES and the dianthrimide procedure do not differ significantly, whereas the Azomethine-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 det. the concn. of boron in soils in the range of 0-2 mg/kg, ICP-AES can be applied following the hot water extn. without further pretreatment of samples. This method is superior in particular when addnl. elements are to be considered in the soil.