AGDB measured parameter: Nb_ppm_MS_HF

Niobium, 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 Nb

Parameter Description
Nb_ppm_AES_AR_P Niobium, in parts per million by weight, by inductively coupled plasma-atomic emission spectroscopy after partial digestion with aqua regia
Nb_ppm_AES_Fuse Niobium, in parts per million by weight, by inductively coupled plasma-atomic emission spectroscopy after LiBO2 or LiBO2-Li2B4O7 fusion
Nb_ppm_AES_HF Niobium, in parts per million by weight, by inductively coupled plasma-atomic emission spectroscopy after HF-HCl-HNO3-HClO4 digestion
Nb_ppm_AES_IE Niobium, in parts per million by weight, by inductively coupled plasma-atomic emission spectroscopy after HF-HClO4-HNO3 digestion and ion exchange
Nb_ppm_CM_HF Niobium, in parts per million by weight, by colorimetry after multi-acid digestion with HF
Nb_ppm_EDX Niobium, in parts per million by weight, by energy-dispersive X-ray fluorescence spectroscopy
Nb_ppm_ES_Q Niobium, in parts per million by weight, by quantitative direct-current arc emission spectrography
Nb_ppm_ES_SQ Niobium, in parts per million by weight, by semi-quantitative visual 6-step or direct reader direct-current arc emission spectrography
Nb_ppm_MS_AR_P Niobium, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after partial digestion with aqua regia
Nb_ppm_MS_HF Niobium, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after HF-HCl-HNO3-HClO4 digestion
Nb_ppm_MS_ST Niobium, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after Na2O2 sinter digestion
Nb_ppm_MS_ST_REE Niobium, in parts per million by weight, by inductively coupled plasma-mass spectroscopy after Na2O2 sinter digestion, REE package
Nb_ppm_WDX_Fuse Niobium, in parts per million by weight, by wavelength-dispersive X-ray fluorescence spectroscopy after LiBO2 or LiBO2-Li2B4O7 fusion