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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.

General Methodology:

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.

Instrument: unstated

Sample material: solid

Sample weight: unstated


Analytical Technique:

Hierarchical classification

Technique >> Spectroscopy >> Electromagnetic radiation >> X-ray >> Emission >> Microprobe >> Electron

Children

None


Analytical Decomposition:

Hierarchical classification

Decomposition >> None

Children

None


Analytical Methods:

IndexMethod OrderMethod IDQuantityDetection Limit
1  6245     Al2O3_CANMET 
2  6246     CaO_CANMET 
3  6247     Cr2O3_CANMET 
4  6248     FeO_CANMET 
5  6249     K2O_CANMET 
6  6250     MgO_CANMET 
7  6251     MnO_CANMET 
8  6252     Na2O_CANMET 
9  6253     SiO2_CANMET 
10  10  6254     TiO2_CANMET 
11  11  6255     ZnO_CANMET 
12  12  6256     Nb2O5_CANMET 
13  13  6257     Total_CANMET 

Associated Analytical Packages:

IndexPackage IDPackage Name
1  201     CANMET Electron Microprobe Analysis (11 major and minor oxides)
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