AGDB measured parameter: W_ppm_MS_HF

Tungsten, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after HF-HCl-HNO3-HClO4 digestion

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 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