AGDB measured parameter: K2O_pct_ES_Q

Potassium, as potassium oxide, in weight percent, by quantitative direct-current arc emission spectrography

Reference for the analytical method

Author Baedecker, Philip A., editor
Year 1987
Title Methods for geochemical analysis
Series Bulletin
Issue 1770
Pages 1 v.: ill.; 28 cm
URL http://pubs.er.usgs.gov/publication/b1770
Notes Includes bibliographies. Analytical methods used in the Geologic Division laboratories of the U.S. Geological Survey for the inorganic chemical analysis of rock and mineral samples.
Organization USGS-BAL

Other parameters measuring K2O

Parameter Description
K2O_pct_AA_FE Potassium, as potassium oxide, in weight percent, by flame emission spectroscopy after multi-acid digestion with HF, or after LiBO2-Li2B4O7 fusion
K2O_pct_AA_F_Fuse Potassium, as potassium oxide, in weight percent, by flame-atomic absorption spectrophotometry after LiBO2-Li2B4O7 fusion
K2O_pct_AA_F_HF Potassium, as potassium oxide, in weight percent, by flame-atomic absorption spectrophotometry after multi-acid digestion with HF
K2O_pct_AES_AR_P Potassium, as potassium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after partial digestion with aqua regia
K2O_pct_AES_Fuse Potassium, as potassium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after LiBO2 or LiBO2-Li2B4O7 fusion
K2O_pct_AES_HF Potassium, as potassium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after HF-HCl-HNO3-HClO4 digestion
K2O_pct_AES_ST Potassium, as potassium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after Na2O2 sinter digestion
K2O_pct_ES_Q Potassium, as potassium oxide, in weight percent, by quantitative direct-current arc emission spectrography
K2O_pct_ES_SQ Potassium, as potassium oxide, in weight percent, by semi-quantitative visual 6-step or direct reader direct-current arc emission spectrography
K2O_pct_MS_HF Potassium, as potassium oxide, in weight percent, by inductively coupled plasma-mass spectroscopy after HF-HCl-HNO3-HClO4 digestion
K2O_pct_NA Potassium, as potassium oxide, in weight percent, by neutron activation
K2O_pct_WDX_Fuse Potassium, as potassium oxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy after LiBO2 or LiBO2-Li2B4O7 fusion