Abstract
Procedures were developed for the solid-phase spectroscopic and test determination of cadmium(II) using 1-(2-hydroxy-5-nitrophenyl)-3-isopropyl-5-(benzoxazol-2-yl)- and 1-(2-hydroxy-5-sulfophenyl)-3-methyl-5-(benzothiazol-2-yl)formazans on a Polyorgs-34n solid-phase fibrous adsorbent (under batch conditions) and a Diasorb-100-TA silica gel with trimethylammonium groups (under dynamic conditions). Optimum conditions were determined for the complexation of these reagents on solid supports. The procedure for the rapid determination of cadmium(II) on Polyorgs-34n was tested for natural water and snow cover.
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