Objective To establish a solution to determination of trace aluminum.
Methods A spectrophotomer was used to record before-and-after absorbances of an oxidative fading reaction of methyl red by potassium bromate catalyzed by aluminum in boiling water bath.
Results The linear range of the proposed method was 40-800 μg/L, the correlation coefficient (r) was 0.998 9, and the detection limit was 8.0 μg/L.
Conclusion A simple, sensitive and accurate catalytic kinetic spectrophotometric method for aluminum determination in water is established.
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