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Bracketing standards

Calibration standards or quality control samples injected before, during and after a batch of case samples. They track instrument drift through the run. The CFSL Chandigarh toxicology SOP requires a bracketing standard every ten case injections; if the bracket fails, the case samples between the last passing bracket and the failing one are re-run.

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Related terms

Calibration curveCertified reference material (CRM)ExtractionInternal standard (IS)Limit of detection (LOD) and limit of quantitation (LOQ)Recovery

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