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Detection of metal ions in solution has been performed without employing H2S or any other sulfide materials. The new method is free from the interference from anions. Identification of Na+, K+, and NH4+has been made possible directly from an aqueous extract of the sample mixture. A technique has been developed to identify Mg2+directly without group separation. Metal ions have been classified into four groups by sequential treatment with 5 N HCl, Na2SO4, and 5 N NaOH as group reagents. In comparison to the existing method, it is much faster and, at the same time, reliable enough.