Good practical result
The SORBIONEX response followed the laboratory trend across many lower and mid-grade samples.
Case study
Agnico Eagle Sweden
SORBEX-Au was tested on gold-bearing samples supplied for Agnico Eagle Sweden. The early test used a lower-capacity SORBEX-Au V2.1 resin, so high-grade samples were interpreted as capacity-limited rather than final method performance.
53 samples compared
Useful response, capacity issue resolved
The test showed a positive practical trend. Later laboratory tests with the updated SORBEX-Au resin, including project materials, indicate that the insufficient-capacity issue has been resolved.
High-grade under-response
At the largest laboratory peaks, the early resin did not reach full loading capacity.
Repeatability check
Each sample was measured five times. Median RSD was 8.3%, and 41 of 53 samples were at or below 15% RSD.
Updated resin capacity
New SORBEX-Au resin tests show high-grade capacity is no longer the limiting factor.
Follow-up laboratory tests with the updated SORBEX-Au resin show that the earlier capacity limitation has been solved and that the resin performs well at high gold loading. This was tested not only on prepared standards, but also on gold-bearing materials, which makes the Agnico result a documented development step rather than a final method limitation.
University of Girona results support the same conclusion at the loaded-resin target level: SORBEX-Au standards reached 2031.6 ug Au/g resin, ICP-OES showed 95.5% Au extraction even at STD7, and EDXRF gave a strong Au response at the highest standard. Additional material tests confirm that the updated resin capacity is suitable for high-Au samples.
Lab Au vs SORBIONEX result
The chart below shows selected sample sequence from the Agnico Eagle Sweden dataset.
Laboratory AuSORBIONEX Au, early V2.1 resin
Interpretation: the early V2.1 resin batch had lower loading capacity than required for the highest-grade Agnico samples. Later laboratory testing with the updated SORBEX-Au resin, including gold-bearing materials as well as standards, shows that this capacity issue has been solved. University of Girona loaded-resin results independently support high-Au resin loading and XRF response.