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CANMET electron microprobe analysis
Canadian Centre for Material and Energy Technology laboratory. Grains are analysed for 11 different major and minor oxides.
Canadian Centre for Materials and Energy Technology (CANMET) Laboratories electron microprobe analysis. Samples are probed for 11 different major and minor oxides using a JEOL 8900 electron microprobe operating at 20kV and 40 nA. Peak counting times of 10 seconds were used for all elements except for TiO2 and Cr2O3. Background determinations were made on every 50th grain. Lower detection limits are about 0.1% for all elements with the exception of about 0.05% for TiO2 and Cr2O3.. One point per grain was analysed with care to avoid fractures, inclusion and pits. At the end of each batch, a similar point was analysed on one grain in 30 in order to monitor precision. Zinc-bearing grains generated false values for sodium due to peak overlaps. Minerals were classified on the basis of visual criteria and evalutation of the weight percent oxide data.
Sample material: solid
Sample weight: unstated
|Index||Method Order||Method ID||Quantity||Detection Limit|
Associated Analytical Packages:
|Index||Package ID||Package Name|
|1||201||CANMET Electron Microprobe Analysis (11 major and minor oxides)|
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