ABSTRACT
Quality control procedures are necessary to ensure that the obtained analytical data and reported values are correct. Validation and approval of analytical data are based on a well-designed and regularly applied quality assurance/quality control (QA/QC) program. The components of this program are divided into a management (QA) and a functional (QC) part. Quality Assurance is a laboratory operation program of specified standard procedures that are aimed at producing data of defensible quality and highly reliable reported results. Quality Control consists of a set of measures within a sample analysis methodology to ensure that the process is controlled.
