Used for accurate quantification of residual plasmid DNA containing the KanR (kanamycin resistance) gene in biological samples, particularly during quality control in biopharmaceutical production. Ideal for monitoring clearance of host cell DNA and plasmid contaminants in recombinant protein and gene therapy workflows. The nonlinear quantification design allows broader dynamic range detection, improving sensitivity and precision without requiring multiple sample dilutions. Commonly applied in downstream process validation to ensure product purity and regulatory compliance.