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Problems in Determining the Noble Metals in Ores.

Authors
Elliott-EV; Stever-KR
Source
Atomic Absorption Newsletter 1973 12(3):60-62
Link
NIOSHTIC No.
10010675
Abstract
Disagreement between our laboratory and two commercial laboratories over the analyses of ores alleged to contain platinum and gold has led to a study of atomic absorption methods used by the outside laboratories. In their procedures, the sample is digested in acid, filtered, and analyzed by atomic absorption. The Bureau of Mines has made tests on known samples, duplicating outside laboratory procedures as closely as possible, and from results of continuum lamp studies has identified the sources of error as scattering and/or broad band molecular absorption. Errors due to wrong assumptions as to solubility of the noble metals were also demonstrated.
Publication Date
19730101
Document Type
OP;
Fiscal Year
1973
NTIS Accession No.
NTIS Price
Identifying No.
OP 90-73
Issue of Publication
3
NIOSH Division
RERC;
Source Name
Atomic Absorption Newsletter, V. 12, No. 3, May-June 1973, PP. 60-62
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