DIG-AR-11
Sample Digestion & Chemical Preparation
Aqua Regia Digestion + ICP Geochemical Sweep
Partial multi-element extraction selectively leaching gold, sulphide-hosted metals, and mobile elements in soils, stream sediments, and weathered saprolite zones.
Detection Limits
0.1 ppm – 10,000 ppm
Turnaround (TAT)
Standard: 3-5 Working Days
Sample Requirement
0.5g to 1.0g pulp
Quality Framework
ISO/IEC 17025 Compliant
Analytical Overview & Methodology
Aqua regia digestion is the premier partial extraction method for geochemical exploration. By dissolving secondary minerals, sulphides, and adsorbed metals without attacking resistant silicate rock matrix, our Aqua Regia ICP Sweep (DIG-AR-11) maximizes geochemical anomaly contrast.
Technical Method Specifications (DIG-AR-11)
| Method Code | DIG-AR-11 |
|---|---|
| Element Coverage | Precious metals pathfinders, base metals, mobile trace elements |
| Detection Range | 0.1 ppm – 10,000 ppm |
| Sample Requirement | 0.5g to 1.0g pulp |
| Instrumentation | Temperature-Controlled Heated Digestion Blocks + ICP-OES |
| Standard Turnaround | Standard: 3-5 Working Days |
Laboratory Protocols & Execution Specs
- Acid Reagent: 3:1 Hydrochloric to Nitric Acid (Aqua Regia)
- Temperature: Controlled heating at 95°C in graphite block digesters
- Extraction: Leaches sulphides, carbonates, oxides, and secondary minerals
- Applications: Regional soil grids, regolith geochemistry, stream sediment surveys
JORC & NI 43-101 Data Integrity Guarantee
Every batch tested under method DIG-AR-11 includes matrix-matched Certified Reference Materials (CRMs), analytical blanks, and duplicate splits at a minimum 20% insertion rate. Official digital Certificates of Analysis are digitally signed and traceable.