Abstract
A flow injection spectrophotometric method is described for the determination of aluminium in kaolins, based on its complexation with Alizarin Red S. The flow injection system permits a throughput of 120 samples per hour with a precision (relative standard deviation) of 1.31% and without any carryover. The aluminium contents in various clay extracts as determined by the proposed flow injection method were in good agreement with those determined by a well established classical method.
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