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A reversed-phase liquid chromatographic method for the determination of titanium with 5,5′-methylenedisalicylohydroxamic acid (MEDSHA) is described. The titanium(IV) complex is formed in a MeOH–5 × 10 −3 M H 2 SO 4  medium and injected onto a Polyspher RP 18  column for chromatography. The mobile phase is H 2 SO 4  (5 × 10 −3 M):MeOH (4:96, v/v) and contains 1.5 × 10 −3  MEDSHA. The detection limit for titanium by the proposed method is 18 µg/L. Titanium is determined in two different samples with satisfactory accuracy and precision.

journal of chromatographic science

Determination of Titanium(IV) as an Additive in Organic Matrices by Reversed-Phase High-Performance Liquid Chromatography with 5,5′-Methylenedisalicylohydroxamic Acid