DIG-4AC-12
Sample Digestion & Chemical Preparation
Four-Acid Near-Total Digestion (HF-HNO3-HClO4-HCl)
Aggressive hydrofluoric, nitric, perchloric, and hydrochloric acid digestion dissolving virtually all silicate, oxide, and sulphide minerals for true whole-rock elemental concentration.
Detection Limits
0.1 ppm – 100%
Turnaround (TAT)
Standard: 4-6 Working Days
Sample Requirement
0.25g to 0.5g pulp
Quality Framework
ISO/IEC 17025 Compliant
Analytical Overview & Methodology
Our Four-Acid Near-Total Digestion (DIG-4AC-12) employs hydrofluoric, perchloric, nitric, and hydrochloric acids to achieve near-complete dissolution of the geological rock matrix, delivering authentic lithogeochemical concentrations.
Technical Method Specifications (DIG-4AC-12)
| Method Code | DIG-4AC-12 |
|---|---|
| Element Coverage | Total lithological suite, refractory silicates, major rock-forming elements |
| Detection Range | 0.1 ppm – 100% |
| Sample Requirement | 0.25g to 0.5g pulp |
| Instrumentation | Teflon Vessel Digestion Blocks + Fume Scrubbers + ICP-OES / ICP-MS |
| Standard Turnaround | Standard: 4-6 Working Days |
Laboratory Protocols & Execution Specs
- Acid Cocktail: HF, HNO3, HClO4, HCl
- Digestion Process: High-temperature evaporation to incipient dryness with perchloric fuming
- Dissolution: Total breakdown of primary silicate minerals
- Instrument: ICP-OES & ICP-MS multi-element suites
JORC & NI 43-101 Data Integrity Guarantee
Every batch tested under method DIG-4AC-12 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.