Determination of Arsenic in Blister Copper and Flue Dust by Atomic Absorption Spectroscopy.
Likaits-ER; Farrell-RF; Mackie-AJ
At Absorpt Newsl 1979 18(2):53-54
The Bureau of Mines is conducting research concerning fugitive metals associated with the smelting of nonferrous ores and concentrates in the copper industry. This analytical method covers the determination of arsenic in blister copper and flue dust by atomic absorption spectroscopy. The procedure involves dissolution of the sample in a mixture of hydrochloric and nitric acids and aspiration of the solution into a nitrous oxide-acetylene flame. The absorbance of the arsenic line at 193.7 nm is determined and compared with the absorbance of standard arsenic solutions. The method is faster than the arsine method used previously and is applicable to the determination of arsenic in the concentration range of 0.05 to 35.0 pct in blister copper and flue dust. At a concentration of 0.6 pct arsenic, the coefficient of variation is 3 pct.
At. Absorpt. Newsl., V. 18, No. 2, March-April 1979, PP. 53-54