Analysis of 8-Hydroxyl Quinoline

The adsorption curve of 8-hydroxyl quinoline varies with solution pH. The adsorption curve of 8-hydroxyl quinoline below pH 3.5 is stable relatively. Two absorption peaks appear, respectively, at 252 and 360 pm. The test results show 

The absorption peak of free 8-hydroxyl quinoline appears between 300 and 330 tm. The absorption peak of Fe, Mn, and A1 compound of 8-hydroxyl quinoline, respectively, appears at 470, 395, and 390 pm (Fig. 6.7). 

When two or more components of mineral react with flotation reagent at the same time, the adsorption curve of each component should be measured. Take the 

The above calculation method is based on that the absorbance of A1 compound of 8-hydroxyl quinoline is not big. When the absorbance of Fe or A1 compound of 8-hydroxyl quinoline can not be neglected, however, the concentration of Fe or A1 compound of 8-hydroxyl quinoline can be, respectively, expressed as follows  

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