95.5-100% Au extraction
ICP-OES checks of final liquid solutions showed nearly complete Au removal from solution by the resin across the tested standard range.
Validation evidence and pilot projects
Validation & Projects
SORBIONEX is validated in layers: university verification of the loaded-resin XRF target, project sample comparison against reference assays and material-specific pilot workflows.
30-50 samples
Test before you commit
Initial project validation can start with representative samples and known reference values.
Completed Au validation
University of Girona confirmed the SORBEX-Au loaded-resin measurement principle.
Gold-loaded SORBEX-Au standards were tested by micro-XRF, EDXRF and ICP-OES. The results showed gold capture on resin, detectable Au XRF peaks and a concentration-dependent EDXRF response.
EDXRF calibration response
Au La net peak increased from 0 to 806.93 Cps between STD0 and STD7, supporting quantitative calibration development.
Micro-XRF confirmation
Gold was detected on individual resin grains, including a clear STD7 spectrum and detectable Au signal in STD1.
Project sample validation
Agnico Eagle Sweden samples showed useful SORBEX-Au trend response and the next resin-capacity target.
The 53-sample comparison is kept separate from the Girona standard validation. It shows practical ore-sample behaviour: useful trend response across many samples and under-response at the highest laboratory Au peaks because the early V2.1 resin had insufficient loading capacity.
What it proves
SORBEX-Au can provide practical sample ranking and local feedback when calibrated against reference data for a specific material.
What it does not claim
The early Agnico test should not be presented as final high-grade performance. The correct next step is repeat validation with higher-capacity resin and defined ore-specific calibration.
SORBEX-REE
REE validation remains a planned university and reference-laboratory programme.
The proposed SORBEX-REE programme includes University of Girona micro-XRF/EDXRF studies of REE-loaded resin targets and ICP-OES/MS reference verification. The work will address spectral overlaps, calibration, reproducibility, detection limits and matrix-specific constraints.
Public distinction: Girona has completed useful Au loaded-resin validation. REE should remain described as planned verification until approved REE results are available.
Free first batch
Start with 30-50 pulp rejects or prepared samples with known reference values, selected to cover the grade and matrix range.
What to send
A short sample list, material description, expected grade range and available reference results are enough to begin.