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A Simple X-Ray Fluorescence Technique for the Determination of Iron and Manganese in Soils and Concretions¹

ABSTRACT

A simple technique for the determination of Fe and Mn in concretions and soils was developed using X-ray fluorescence. A 25 mg sample was suspended in a 1% glue-methyl alcohol solution and transferred to a 4.25-cm circle of filter paper. The filter paper containing a thin layer of uniformly distributed sample was placed in an X-ray emission spectrograph for analysis, and highly reproducible and accurate results were obtained. Precision was achieved over a wide range of Fe and Mn oxide contents.

¹ Contribution from the Department of Agronomy, University of Kentucky, Lexington. The research reported in this paper (no. 69-3-32) is in connection with a project of the Kentucky Agr. Exp. Sta. and published with the approval of the Director.

² Assistant Professor of Agronomy, Graduate Assistant, and Assistant Professor of Agronomy, respectively.

Received for publication April 18, 1969. Accepted for publication June 11, 1969.