The PCR Inhibition Problem That Standard Checks Can Miss
PCR inhibition can hide behind apparently acceptable QC results, especially in polyphenolic-rich samples like soil, wastewater, plant, and fecal extracts. Partial inhibition may delay Ct values, reduce sensitivity, and cause false negatives without complete reaction failure. Dilution testing can reveal inhibition, but targeted inhibitor removal is often needed to preserve low-abundance targets.

