Kang, Min-Jung Lee, Hyeim Shin, Sang Mi Yoo, Hye Hyun Kwon, Oh-Seung Jin, Changbae Chung, Bong Chul 2024-01-20T18:32:00Z 2024-01-20T18:32:00Z 2021-09-05 2010-10 0253-2964 https://pubs.kist.re.kr/handle/201004/131044 The objective of this study was to validate performance characteristics of the Access 2 (Beckman coulter) system for hCG assays for use as a confirmation test for doping control. The Access 2 assay was linear up to 500 IU/L. The correlation coefficient was higher than 0.999, and the sensitivity of the linearity was 0.82. There were no false positive or false negative cases. LOD was 0.59 IU/L. The method was robust when performed by different people. Repeatability and reproducibility were below 7%. We compared reproducibility and recoveries of Access 2 and Elecsys 2010. Access 2 demonstrated higher reproducibility than Elecsys 2010. Recoveries (accuracy) of Access 2 were between 85 and 105%. Recoveries for Elecsys 2010 were between 91 and 104%. English 대한화학회 Performance Characteristic of the beta-Human Chorionic Gonadotropin Assay on the Access 2 for Its Use in Doping Control Article 10.5012/bkcs.2010.31.10.2889 1 Bulletin of the Korean Chemical Society, v.31, no.10, pp.2889 - 2892 Bulletin of the Korean Chemical Society 31 10 2889 2892 N scie scopus kci ART001526141 000288766000022 2-s2.0-78049382860 Chemistry, Multidisciplinary Chemistry Article TESTOSTERONE SPORTS MISUSE beta-hCG Access 2 Doping control Method evaluation Confirmation method