Abstract
Some conditions, such as the height of light beam passing through flame and the effects of acids and coexisting elements, have been examined experimentally in case of the determination of iron by atomic absorption spectrophotometry.
Concerning the effects of coexisting elements and constituents, silicon, strontium, citric acid, tartaric acid and the sulfate of aluminum and manganese acted to decrease the absorbance of iron. But these interferences were suppressed by adjusting the height of light beam 15 to 20 mm above the burner top.
