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Abstract
A radiochemical procedure has been developed for the determination of very low concentrations of nickel in rocks and minerals. Sensitivity is 0.01 μg Ni. Accuracy and precision is estimated to be ±5 percent to levels as low as 0.1 μg Ni a marked improvement over other analytical techniques. Samples are irradiated, combined with nickel carrier, and treated by a series of chemical procedures: (1) collection of nickel in a lead bead using a fire-assay technique, (2) refusion of the lead bead and precipitation of basic element hydroxides, (3) anion-exchange chromatography, and (4) precipitation of nickel dimethylglyoxime. The nickel precipitate is weighed to determine chemical yield and counted for β activity of Ni65 along with a precipitate from irradiated nickel standard solution.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Radiochemical determination of very low concentrations of nickel in rocks and minerals |
| Series title | Journal of Research of the U.S. Geological Survey |
| Volume | 3 |
| Issue | 4 |
| Year Published | 1975 |
| Language | English |
| Publisher | U. S. Geological Survey |
| Description | 7 p. |
| First page | 467 |
| Last page | 473 |
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