6533b825fe1ef96bd1283177
RESEARCH PRODUCT
Determination of titanium by adsorption-voltammetry with 2-(5-bromo-2-pyridylazo)-5-(diethylamino)-phenol (5-Br-PADAP)
Rolf NeebJinkui Zhousubject
Detection limitMERCURECalibration curveChemistryAnalytical chemistrychemistry.chemical_elementBiochemistryAnalytical ChemistryIonchemistry.chemical_compoundAdsorptionPhenolVoltammetryTitaniumNuclear chemistrydescription
The 1:1 complex between titanium (IV) and 5-Br-PADAP can be used to determine titanium by adsorption voltammetry at a stationary Hg-electrode. The experimental conditions for the determination are described. The detection limit is 3×10−10 mol/l Ti (0.015 ppb). Calibration curves are linear for solutions containing 4×10−10 to 5×10−8 mol/l Ti(IV) and an enrichment time of 3 min. The influence of foreign ions was investigated. The determination can be carried out in the presence of a 5000-fold excess of iron.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1990-01-01 | Fresenius' Journal of Analytical Chemistry |