The purpose of a quality control (QC) program in a laboratory is to ensure that analytical results are reliable through systematic monitoring of processes. A robust QC program involves the continuous evaluation of laboratory procedures to confirm that they are producing accurate and precise results. This includes the implementation of protocols to check the performance of instruments, reagents, and methods used in testing. By regularly monitoring and assessing these elements, laboratories can identify any deviations or errors in the analytical process, address them promptly, and maintain the integrity of their results.
This careful oversight helps establish confidence in the data being produced, which is crucial for decision-making in environmental, clinical, and other analytical contexts. A QC program also engenders trust among stakeholders and regulatory bodies, knowing that the laboratory adheres to stringent standards of quality.