OREAS 612
SKU: 612
OREAS 612 is a certified reference material produced from a rhyodacite host
blended with Ag–Pb–Zn ores from the Bowdens deposit, a Pb–Zn concentrate, and a
minor Au-bearing component from Frogs Leg.
The matrix reflects felsic volcanic host rocks carrying Ag–Pb–Zn
mineralisation with trace Au, making OREAS 612 well-suited for calibration and
quality control of multi-element geochemical methods used in exploration
geochemistry, routine lab QA/QC, and metallurgical programs where both precious
and base metals are monitored.
OREAS 612 has been characterized using the following methods:
Gold via low level, 25-50g fire assay with AAS or ICP-OES finish
Gold by aqua regia digestion (10-50g sample weight) with ICP-OES, ICP-MS
or AAS finish
Full ICP-OES and ICP-MS elemental suites by 4-acid (HNO3-HF-HClO4-HCl)
digestion
Full ICP-OES and ICP-MS elemental suites by aqua regia digestion
Certified values for applicable analytes are operationally defined for each
method, with results under OREAS ISO 17034 scope of
accreditation.
Specifications
- State: primary
- Matrix: rhyodacite
- Mineralisation: low sulphidation epithermal
- CRM Group: Au, Au-Cu ore, Au-Ag ore
Certified Values
| Analyte | Certified Value | 1SD | 95% CL Low | 95% CL High | Method |
|---|---|---|---|---|---|
| Ag, Silver (ppm) | 46.0 | TBD | TBD | TBD | 4-Acid Digestion |
| Au, Gold (ppm) | 0.050 | TBD | TBD | TBD | Pb Fire Assay |
| Cu, Copper (ppm) | 30.0 | TBD | TBD | TBD | 4-Acid Digestion |
| S, Sulphur (wt.%) | 0.640 | TBD | TBD | TBD | 4-Acid Digestion |
| As, Arsenic (ppm) | 345 | TBD | TBD | TBD | 4-Acid Digestion |
| Pb, Lead (wt.%) | 0.300 | TBD | TBD | TBD | 4-Acid Digestion |
| Zn, Zinc (wt.%) | 0.370 | TBD | TBD | TBD | 4-Acid Digestion |
Ürün Özellikleri
Sertifikalı Referans Değerler
| Analit | Sertifikalı Değer | Belirsizlik (1SD) | %95 Güven Aralığı Alt | %95 Güven Aralığı Üst | Yöntem |
|---|
SD = Standart Sapma | CL = %95 Güven Limitleri
Yöntemler: AR = Kral Suyu, 4-Acid = 4-Asit Çözünürlük, LBF = Lityum Borat Füzyon, FA/AAS = Ateş Tahlili / AAS, LECO = LECO Yanma Analizi
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