Laboratory Method 29-13. The Determination, by Atomic-absorption Spectrophotometry, of Copper, Lead, and Zinc in Sulphide Concentrates
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Published: 1976
Total Pages: 3
ISBN-13:
DOWNLOAD EBOOKThe direct procedure described uses a nitrous oxide-acetylene flame. Tests leading to its development are briefly described. The precision is approximately 1 per cent of the content over the ranges 4 to 63 per cent for lead, 5 to 21 per cent for copper, and 5 to 54 per cent for zinc. With the exception of zinc, for which there was a small negative bias, the values obtained agreed to within 5 per cent with those obtained by the method of standard additions, which, in the absence of suitable reference materials, was used for comparison.