Abstract
An improved method for the determination of aluminum in serum by atomic absorption spectrometry with a graphite furnace is presented. The method is suitable for the analysis of serum samples having normal and elevated aluminum content. The serum sample can be analyzed diluted or undiluted because the selected temperatures program minimizes the matrix interferences. High temperatures are made possible by the use of graphite Zr-coated tubes. The detection limit is 0.7 μg Al/liter. The coefficient of variation is 3.2% for serum concentration of 5 μg Al/liter and 1% for serum concentration of 50 μg Al/liter.
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