Determination of iron, titanium, osmium, and aluminum with tiron by reverse-phase high performance liquid chromatography/electrochemistry
1991; Elsevier BV; Volume: 43; Issue: 3 Linguagem: Inglês
10.1016/s0026-265x(10)80004-9
ISSN1095-9149
Autores Tópico(s)Microfluidic and Capillary Electrophoresis Applications
ResumoThe possibilities for separation and determination of iron-, osmium-, titanium-, and aluminum-tiron chelates by high performance liquid chromatography/electrochemical detection were investigated systematically. Using methanol/water containing phosphate buffer and tetrabutylammonium hydroxide (TBA-OH) as the mobile phase at a flow-rate of 0.8 ml/min, iron and osmium, iron and titanium, titanium and aluminum, and iron and aluminum separated completely and were detected electrochemically at + 1.2 V (vs SCE). By changing the pH in the mobile phase, we can selectively detect iron, titanium, and osmium in a large amount of aluminum. Large amounts of foreign ions did not interfere with the separation and detection of the four metal ion chelates described.
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