What is the purpose of method validation in QA/QC?

• A. To demonstrate the method performs as intended with acceptable accuracy, precision, and detection limits.
• B. To license the method for use in the lab.
• C. To confirm personnel training and competency.
• D. To verify equipment safety compliance.

Answer: (A)

In QA/QC, method validation proves that an analytical method works reliably for its intended use by showing core performance characteristics such as accuracy, which measures how close results are to the true value; precision, which reflects how consistently results can be reproduced; and detection limits, which define the smallest amount that can be reliably detected and quantified. By establishing these performance traits with predefined acceptance criteria, the lab demonstrates that the method will yield trustworthy data during routine analysis, supporting data integrity and regulatory compliance. Licensing the method isn’t the aim of validation, which is about proving performance; training and competency cover people, not the method’s performance; and equipment safety checks fall under equipment qualification and safety rather than validating the analytical method itself.