The quality control of preanalytical variations for the determination of lead in samples of human origin

The aims of this article was to provide the quality control requirements of preanalytical variation for the determination of lead in samples of human origin, reduce the influence of preanalytical variation on the test results. According to the Clinical and Laboratory Standards Institute documents, control of preanalytical variation in trace element determinations, analytical procedures for the determination of lead in blood and urine and other references and guidelines, the methods of quality control of lead determination had been made, including: the factors needed to be considered before collection, preservation, transportation and other preanalytical factors, the abilities and considerations of laboratory staff, etc. Key words: Lead; Quality control; Sample of human origin; Preanalytical variation