Comparison of atomic absorption spectrometric,spectrophotometric, and fluorimetric methods for determination of aluminum in water

Three methods for quantifying aluminum in water samples are compared. An electrothermal atomic absorption method is assumed to be free of interferences and has an applicable range of 10 to above 1000 μg Al l^-1. The colorimetric ferron method has multiple interferences and is useful in the 50–1500 μg Al l^-1 range. The fluorimetric method based on lumogallion has few important interferences and is useful to below 1 μg Al l^-1.