| Popis: |
The gas Chromatographic behaviour of the trifluoracetyl-aeetonates (TFA's) of aluminiumIII, galliumIII, indiumIII, berylliumII and thallium has been studied and conditions for their complete separation found. The thallium derivative has not been characterised, but produces a chromatographic peak well separated from the others. Elution products have been collected and examined for comparison with the injected material. An over-all relative mean error of 2%, based on calibration data, demonstrates the feasibility of gas chromatography with a thermal conductivity detector for the quantitative determination of aluminium, gallium, indium and beryllium. Using conditions established for complete separations, it is possible to obtain the gas chromatographic analysis of any combination of up to 5 metals by a maximum of two runs which involve a change in column temperature only. The TFA's of scandiumII, chromiumIII, copperII, manganeseIII, zirconiumIV, hafniumIV, zincII and thoriumIV are studied, enabling a prediction of interference in this method. |
