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The two reactions between copper(II) and calcon(NN) and between aluminum(III) and (NN) were both sensitive at pH 5 in the presence of Triton X-l 00. The selective competition coordination determination (SCCD) of copper was reported. The ordinary spectro-photometry was limited for use because of the serious influence of the excess reactant. By means of the spectral correction method, not only the determination...
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