Mineral Resources On-Line Spatial Data

Aluminum, as aluminum trioxide, in weight percent, by colorimetry.

Parameter	Description
Al2O3_pct_AES_AR	Aluminum, as aluminum trioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
Al2O3_pct_AES_HF	Aluminum, as aluminum trioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
Al2O3_pct_AES_SF	Aluminum, as aluminum trioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
Al2O3_pct_CM	Aluminum, as aluminum trioxide, in weight percent, by colorimetry.
Al2O3_pct_ES	Aluminum, as aluminum trioxide, in weight percent, by semi-quant direct-current arc emission spectrography.
Al2O3_pct_ES_Q	Aluminum, as aluminum trioxide, in weight percent, by quant direct-current arc emission spectrography.
Al2O3_pct_GV	Aluminum, as aluminum trioxide, in weight percent, by gravimetry.
Al2O3_pct_MS_HF	Aluminum, as aluminum trioxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
Al2O3_pct_WDX	Aluminum, as aluminum trioxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.

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U.S. Department of the Interior | U.S. Geological Survey
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Page Last modified: 13:42 on 06-Apr-2012