W. Zmijewska, DETERMINATION OF ANTIMONY IN NATURAL-WATERS BY PRECONCENTRATION ON A CHELATING SORBENT FOLLOWED BY INSTRUMENTAL NEUTRON-ACTIVATION ANALYSIS, Biological trace element research, 43-5, 1994, pp. 251-257
Antimony was preconcentrated from natural waters on thionalide-loaded
acrylic polymer (Bio-Beads SM-7) from 0.5 m HCl solution. Prior to the
preconcentration, Sb(V) was reduced to Sb(III) with potassium iodide.
The antimony retained on the resin was determined by neutron activati
on and gamma-spectrometric measurement of Sb-122 (564 keV). The lower
limit of detection was 0.023 mu g/L for a 100-mL sample.