Chemiluminescence Determination of Titanium(IV) by Flow Injection Analysis Using a Jones Reductor Column On-Line

Abstract

A procedure is presented for determining titanium(IV) (10^-6-10^-2M) in a flow injection system using chemiluminescence detection resulting from the reaction of titanium(III) with a carbonate buffer after passage of the titanium(IV) samples through a Jones reductor minicolumn using 0.01M HCl as a carrier stream. The limit of detection is 1×10^-6M (52pmol per injection). The RSD at 4×10^-4M titanium is 4.4% (10 replicates). Some other ions (Ni(II), Co(II), Cd(II), Ce(IV) and Mo(VI)) were found to affect the titanium signal.