Much of what occurs behind closed doors in an analytical laboratory might be rather daunting to clients of the lab. Discussions of error, significant figures, robustness, method optimization and validation, proper use of appropriate PPE (personal protective equipment), training records, reagent storage, limits of quantitation, and linearity, to highlight an ultra-limited few, are likely not the critical minutiae clients, such as cannabis farms or product manufacturers are combing through. The client sends the samples, and waits for the results.

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https://terpenesandtesting.com/category/testing/laboratory-certificates-of-analysis-demystified/