AGDB measured parameter: Ta_ppm_ES_SQ

Tantalum, in parts per million by weight, by semi-quantitative visual 6-step or direct reader direct-current arc emission spectrography

Reference for the analytical method

Author Arbogast, Belinda F., editor
Year 1996
Title Analytical methods manual for the Mineral Resource Surveys Program, U.S. Geological Survey
Series Open-File Report
Issue 96-525
Pages xi, 248 leaves; 28 cm
URL http://pubs.er.usgs.gov/publication/ofr96525
Notes This edition replaces the methods portion of Open-file report 90-668 published in 1990 -- Introduction. Includes bibliographical references.
Organization USGS-BGC

Other parameters measuring Ta

Parameter Description
Ta_ppm_AA_F_HF Tantalum, in parts per million by weight, by flame-atomic absorption spectrophotometry after multi-acid digestion with HF
Ta_ppm_AES_HF Tantalum, in parts per million by weight, by inductively coupled plasma-atomic emission spectroscopy after HF-HCl-HNO3-HClO4 digestion
Ta_ppm_ES_SQ Tantalum, in parts per million by weight, by semi-quantitative visual 6-step or direct reader direct-current arc emission spectrography
Ta_ppm_MS_AR_P Tantalum, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after partial digestion with aqua regia
Ta_ppm_MS_HF Tantalum, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after HF-HCl-HNO3-HClO4 digestion
Ta_ppm_MS_ST Tantalum, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after Na2O2 sinter digestion
Ta_ppm_MS_ST_REE Tantalum, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after Na2O2 sinter digestion, REE package
Ta_ppm_NA Tantalum, in parts per million by weight, by neutron activation