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X-Ray Fluorescence Determination of Barium and Strontium in Geologic Samples

Volume 25, Number 3 (June 1971) Page 316-318

Fabbi, Brent P.

It is possible to accurately determine barium and strontium in a variety of geologic samples by the XRF method proposed herein after correcting for matrix effects. The first-order (I) titanium Kα1 line interferes spectrally with the barium first-order (I) Lα1 analytical line. Iron significantly absorbs the emitted strontium x-ray quanta. Both of these effects were investigated in detail and a method of correcting for them developed: Detection limit for both elements is about 10 ppm.