SUMMARY
The application note summarizes the digestion of GCr-06, a Chromite pulp Certified Reference Material using ColdBlock Digestion Pro Series Technology.
| Instrument: | ColdBlock CBM sample digester, chiller, Quartz vessels, ICP-OES |
| Published: | February 2023 |
| Digestion Time: | 20 Minutes |
| Acid Used: | H3PO4 & H2SO4 |
| Average ColdBlock Recovery vs. CRM: |
|
Figure 1 – GCr-06 after bulk-up to 100mL
Prior to homogenization and testing, this material was sourced from Pulp Chromite
geostats.com.au
GCr-06;Pulp Chromote; Geostats Pty Ltd, Mining Industry Consultants; O’Connor, Western Australia (December, 2010)
|
Geostats – GCr-06 – Chromite Pulp |
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|
Method: |
0.25g |
8mL H3PO4 – Digested at 80% power for 20 minutes |
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|
Element |
Certified XRF Value (%) |
95% Confidence Limits |
Sample A |
Sample B |
Sample C |
Average (ppm) |
Stdev |
% RSD |
% Recovery vs certified XRF |
|
|
Low |
High |
|||||||||
|
Al2O3 |
8.72 |
8.68 |
8.76 |
8.68 |
8.69 |
8.68 |
8.68 |
0.005 |
0.1 |
100% |
|
Cr2O3 |
47.92 |
47.72 |
48.12 |
47.61 |
47.55 |
47.64 |
47.60 |
0.037 |
0.1 |
100% |
|
Fe2O3 |
28.8 |
28.7 |
28.9 |
28.74 |
27.79 |
29.02 |
28.52 |
0.526 |
1.8 |
99% |
|
MgO |
9.01 |
8.96 |
9.06 |
8.92 |
8.99 |
9.01 |
8.97 |
0.039 |
0.4 |
100% |
|
MnO |
0.716 |
0.709 |
0.723 |
0.734 |
0.745 |
0.729 |
0.736 |
0.007 |
0.9 |
103% |
|
TiO2 |
0.343 |
0.337 |
0.349 |
0.329 |
0.339 |
0.341 |
0.336 |
0.005 |
1.6 |
98% |
Click here to download the Application Note in PDF format.
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