Troubleshooting Invalid Tests: Why Does the Control Line Fail?
No C-Line = No Result A missing Control (C) line renders the test invalid. Common causes include: Conjugate Death: Gold nanoparticles aggregated or antibodies denatured. Membrane Dry-out: Old strips stored without desiccants. Flow Obstruction: Sample pad clogging preventing liquid from reaching the C-line. Switching to Due Bio robustly packaged and stabilized strips can reduce invalid … Read more