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AGDB measured parameter: W_ppm_ES_SQ

Tungsten, 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 W

Parameter Description
W_ppm_AES_Acid_P Tungsten, in parts per million by weight, by inductively coupled plasma-atomic emission spectroscopy after unknown partial digestion/leach
W_ppm_AES_AR_P Tungsten, in parts per million by weight, by inductively coupled plasma-atomic emission spectroscopy after partial digestion with aqua regia
W_ppm_AES_HF Tungsten, in parts per million by weight, by inductively coupled plasma-atomic emission spectroscopy after HF-HCl-HNO3-HClO4 digestion
W_ppm_AES_IE Tungsten, in parts per million by weight, by inductively coupled plasma-atomic emission spectroscopy after HF-HClO4-HNO3 digestion and ion exchange
W_ppm_CM_HF Tungsten, in parts per million by weight, by colorimetry after multi-acid digestion with HF
W_ppm_CM_ST_P Tungsten, in parts per million by weight, by colorimetry after carbonate flux sinter partial digestion
W_ppm_EDX Tungsten, in parts per million by weight, by energy-dispersive X-ray fluorescence spectroscopy
W_ppm_ES_Q Tungsten, in parts per million by weight, by quantitative direct-current arc emission spectrography
W_ppm_ES_SQ Tungsten, in parts per million by weight, by semi-quantitative visual 6-step or direct reader direct-current arc emission spectrography
W_ppm_MS_AR_P Tungsten, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after partial digestion with aqua regia
W_ppm_MS_HF Tungsten, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after HF-HCl-HNO3-HClO4 digestion
W_ppm_MS_ST Tungsten, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after Na2O2 sinter digestion
W_ppm_MS_ST_REE Tungsten, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after Na2O2 sinter digestion, REE package
W_ppm_NA Tungsten, in parts per million by weight, by neutron activation