- Mineral Resources
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- Alaska Geochemical Database
AGDB measured parameter: Ir_ppm_NA
Iridium, in parts per million by weight, by neutron activation
Reference for the analytical method
| Author |
Taggart, Joseph E., editor |
| Year |
2002 |
| Title |
Analytical methods for chemical analysis of geologic and other materials, U.S. Geological Sur |
| Series |
U.S. Geological Survey open-file report 02-223 |
| URL |
http://pubs.usgs.gov/of/2002/ofr-02-0223/ |
| Notes |
Title from PDF title screen (viewed on Oct. 21, 2003). Updates Open-file report 96-525. Includes bibliographical references. Mode of access: Internet. System requirements: Adobe Acrobat Reader (available free). |
| Organization |
USGS-BGC |
Other parameters measuring Ir
| Parameter |
Description |
| Ir_ppm_ES_SQ |
Iridium, in parts per million by weight, by semi-quantitative visual 6-step or direct reader direct-current arc emission spectrography |
| Ir_ppm_FA_ES |
Iridium, in parts per million by weight, by PbO fire assay and quantitative direct-current arc emission spectrography |
| Ir_ppm_FA_MS |
Iridium, in parts per million by weight, by NiS fire assay and inductively coupled plasma-mass spectroscopy |
| Ir_ppm_NA |
Iridium, in parts per million by weight, by neutron activation |
