Abstract:In this work, efficient methods to determine aluminum (Al) and lead (Pb) in beer samples by graphite furnace atomic absorption spectrometry (GFAAS), following multivariate optimization, were developed. The only sample preparation used was degassing of the beer to remove CO 2. Permanent rhodium (Rh) for aluminum and permanent iridium (Ir) for lead proved to be the better permanent modifier. Optimization included fractional factorial planning using the Pareto and the CCD designs. The working linear range was 0-9… Show more
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