title: Analytical performance of centrifuge-based device for clinical chemistry testing.
abstract: BACKGROUND
  A centrifuge-based device has been introduced to the Samsung Blood Analyzer (SBA). The verification of this analyzer is essential to meet the ISO15189 standard.
  
  
  METHODS
  Analytical performance was evaluated according to the NCCLS EP05-A method. The results of plasma samples were compared between the SBA and a Hitachi 917 analyzer according to the NCCLS EP09-A2-IR method. Percent recovery was determined via analysis of original control serum and spiked serum.
  
  
  RESULTS
  Within-run precision was found to be 0.00 - 6.61% and 0.96 - 5.99% in normal- and abnormal-level assays, respectively, while between-run precision was 1.31 - 9.09% and 0.89 - 6.92%, respectively. The correlation coefficients (r) were > 0.990. The SBA presented analytical accuracy at 96.64 +/- 3.39% to 102.82 +/- 2.75% and 98.31 +/- 4.04% to 103.61 +/- 8.28% recovery, respectively.
  
  
  CONCLUSIONS
  The results obtained verify that all of the 13 tests performed using the SBA demonstrates good and reliable precision suitable for use in qualified clinical chemistry laboratory service.
authors.affiliation: Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
authors.forename: Jamikorn
authors.initials: J
authors.lastname: Suk-Anake
authors.forename: Chamras
authors.initials: C
authors.lastname: Promptmas
mesh_terms: D001774:Blood Chemical Analysis; D002498:Centrifugation / Q000295:instrumentation*; D019963:Clinical Chemistry Tests / Q000295:instrumentation*; D006801:Humans; D015203:Reproducibility of Results