| Popis: |
A FORTRAN computer program is presented for quantitative multielement analysis of spectral data from both isotope- and x-ray tube-excited x-ray fluorescence systems. The program is designed for analysis of pelletized environmental samples (20 to 200 mg/cm/sup 2/) using thin film spectrometer calibrations and subsequent mathematical matrix corrections for seld absorption, particle size effects and enhancement. A background-independent direct peak analysis method permits rapid determination of net peak areas and peak overlap corrections. Matrix-corrected quantities of 24 elements can be determined from 1024 channels of raw spectral data in 20 to 40 sec with relative accuracies of a few percent. Options for applying the program to spectra from in-situ seabed analyses are also included. |
