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AGDB measured parameter: Hf_ppm_NA

Hafnium, 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 Hf

Parameter Description
Hf_ppm_ES_SQ Hafnium, in parts per million by weight, by semi-quantitative visual 6-step or direct reader direct-current arc emission spectrography
Hf_ppm_MS_AR_P Hafnium, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after partial digestion with aqua regia
Hf_ppm_MS_HF Hafnium, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after HF-HCl-HNO3-HClO4 digestion
Hf_ppm_MS_ST Hafnium, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after Na2O2 sinter digestion
Hf_ppm_MS_ST_REE Hafnium, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after Na2O2 sinter digestion, REE package
Hf_ppm_NA Hafnium, in parts per million by weight, by neutron activation