QA/QC Fundamentals

Quality Assurance and Quality Control QA/QC are essential for ensuring reliable assay data. The Purpose of QA/QC QA/QC programs detect: - Contamination during sample preparation - Analytical errors at the laboratory - Systematic biases in results - Sample mix-ups or mislabeling Control Sample Types Blanks Barren material inserted to detect contamination. Should return assay values below detection limits. Standards Certified reference materials CRMs with known values. Monitor laboratory accuracy. Duplicates Second sample of same material. Assess precision and reproducibility.

All lessons in Sampling & QA/QC — Return to the complete Sampling & QA/QC course outline.
Previous lesson: Sample Collection Methods — Different sample collection methods are suited to different geological settings and objectives. Channel Sampling A continuous channel is cut…
Next lesson: Implementing Blanks and Standards — Proper insertion and evaluation of blanks and standards is critical for data quality. Blank Sample Protocol Material Selection - Use certified barren…

Verification resources

Cross-check terminology, classification, methods, and safety with these authoritative external resources.

Mineral Exploration Best Practice Guidelines — Canadian Institute of Mining, Metallurgy and Petroleum. Professional guidance for representative sampling, chain of custody, laboratories, security, and QA/QC.
National Instrument 43-101 — British Columbia Securities Commission. Canadian mineral-project disclosure requirements and related technical-report framework.

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QA/QC Fundamentals

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Verification resources