ABSTRACT
Objective:To have more comprehensive and objective understanding of 2120i blood cell analyzer and find an optical calibration method for ISO15189 approval to ensure the accuracy of the results detected by the analyzer.Methods: Analyzing the principle and structure of the instrument, calibrating the analyzer according to the steps and method obtained by adjustment of optical calibration and correction coefficient, and using the correction fluid to verify the reliability of test results.Results: The optical calibration methods meet the requirement of ISO15189 approval. The optical system is in good working condition and the detection results are reliable. Conclusion: The optical system is the core part of the instrument. Optical calibration plays important role in ISO15189 approval. The optical calibration method can meet the requirements of clinical examination; and also can solve some problems existed in the process of instrument calibration and use. It guarantees the reliability of detection results and also meets the requirements of optical calibration in ISO15189 approval.