Ms. Melgunov et al., THE DETERMINATION OF RB, SR, Y, ZR, AND NB IN REFERENCE SAMPLES, USING SRXFA, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 359(1-2), 1995, pp. 331-333
The technique for improving the reproducibility and accuracy of SRXFA
determination of Rb, Sr, Y, Zr and Nb in samples of recks with a wide
range of inclosing matrixes is suggested. It is based on the use of Rh
or Sr, widely occurring in most types of rocks and reliably detected
by other methods (XRFA-SRM) as internal standard for a final element c
oncentration calculation in SRXFA. A set of national Russian reference
samples was used on the stage of technique elaboration.