Nature of the interference of nitric acid in the determination of nickel and vanadium by atomic absorption spectrometry with electrothermal atomization |
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| Authors: | Eliane M-M Sutter Maurice J-F Leroy |
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| Institution: | Laboratoire de Chimie Minérale, École Nationale Supérieure de Chimie, 1 rue Blaise Pascal, 67008 Strasbourg, CedexFrance |
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| Abstract: | Effects of the concentration of nitric acid in the determination of nickel and vanadium in the presence of other metals by flarneless atomic absorption spectrometry have been studied. Specific complexation of the metals in the aqueous phase suppresses the interferences. A method has been developed which allows the use of calibration curves from dilute acidic solutions in the determination of samples with high nitrate concentrations. The method is suitable for solutions reproducing the mineralization of airborne particulates. |
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