On the Possibility of X-ray Fluorescence Micro-Analysis of Solutions with Preliminary Concentration
Keywords:
sample preparing, x-ray fluorescence analysis, preliminary concentration, polycapillary optics.Abstract
Addressed to the elaboration of highly sensitive method for micro-analysis of solutions, the
results of testing studies in the field of energy dispersive x-ray fluorescence analysis are presented. A
combined scheme of the analysis of single drop of solution of several micro-liters is proposed. The
scheme includes a new method of concentration based on the evaporation of the drop in the presence of a
micro-bead of sorbent being selective to transition metals followed by micro-analysis of solid phase with
the application of a new IRO portable instrument with polycapillary lens with focus spot of 10 microns.
At using of 100 μm size beads of the DETATA sorbent and single drops taken from the model solutions
containing manganese, iron, cobalt, nickel, cooper and zinc analytically applicable spectra of x-ray
fluorescence can be got
