The composition ratio of Al to 2, 3, 7-Trihydroxy-9- [4-(3-Carboxy-4-Hydroxy)-Phenylazo] Fluoroneand 2, 4-dinitrophenol in the ternary complex is found to be 1:3:2. The peak is caused by the reduction of the complex adsorbed at the electrode. A feasibility study has been made on looking for gold with gamma-spectrometry in an area of gold-quartz vein, Shandong Province.B
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