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Catalytic Spectrophotometric Determi-nation of Trace Titanium

Wu Lunfu andChen Guoshu(Department of Chemistry,Nanchang University,Nanchang 330047)  
A new kinetic spectrophotometricmethod for the determination of titanium(Ⅳ)based on its catalytic effect on the dis-coloring reaction between potassium iodide,potassium iodate and malachite green in sul-furic acid has been established,Beer's law isobeyed within the concentration range of 0~1.0μg/25mL Ti(Ⅳ),The detection limit is3.4×10 ̄(-10)g/mL Ti (Ⅳ).This method hasbeen applied to the determination of traceamounts of titanium in human hair with sat-isfactory results.
【CateGory Index】: Q581
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