Published: Journal of Chromatographic Science, Volume 35, Number 3, March 1997, pp. 131–134.
Determination of Titanium(IV) as an
Additive in Organic Matrices by Reversed-Phase High-Performance
Liquid Chromatography with 5,5'-Methylenedisalicylohydroxamic
Acid
G. Bagur, M. Sánchez-Viñas,
and D. Gázquez
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 x 10–3M H2SO4 medium and injected onto a Polyspher RP18 column for chromatography. The mobile phase is H2SO4 (5 x 10–3M):MeOH (4:96, v/v) and contains 1.5 x 10–3M 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.
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