title: [GoldMag particle-based chemiluminescence immunoassay for human high sensitive C-reactive protein].
abstract: OBJECTIVE
  To develop a sensitive, accurate detection method for high sensitive C-reactive protein (hsCRP).
  
  
  METHODS
  With the GoldMag particle as the solid phase carrier, horseradish peroxidase (HRP)-lunimo-H2O2 as the chemiluminescence reaction system, we established a chemiluminescent immunoassay for hsCRP detection. Linear range, sensitivity, precision, accuracy and other indicators were evaluated. hsCRP level of 233 clinical human serum specimens were determined and compared by two different methods: the GoldMag particle-based magnetic chemiluminescence enzyme-linked immunoassay established in this study, and the commercialized scattering immunoturbidimetric assay from Germany SIEMENS.
  
  
  RESULTS
  The chemiluminescent immunoassay for hsCRP based on GoldMag particle had a good linear relationship between 0.15 mg/L and 25 mg/L (R(2)=0.9937), with the detection limit of 0.076 mg/L. The intra-assay precision was less than 10.00% and the inter-assay precision was less than 15.00%. The average recovery rate for accuracy was 97.80%. In the contrast experiment of 233 clinical human serum specimens, the results obtained using the approach established in this study showed a high correlation and consistency with scattering immunoturbidimetric assay from Germany SIEMENS.
  
  
  CONCLUSIONS
  GoldMag particle-based magnetic chemiluminescence enzyme-linked immunoassay for hsCRP has been successfully developed.
authors.affiliation: College of Life Sciences, Northwest University, Xi'an 710069, China.
authors.forename: Boyang
authors.initials: B
authors.lastname: Guo
authors.affiliation: College of Life Sciences, Northwest University, Xi'an 710069; National Engineering Research Center for Miniaturized Detection Systems, Xi'an 710069, China.
authors.forename: Le
authors.initials: L
authors.lastname: Ma
authors.affiliation: National Engineering Research Center for Miniaturized Detection Systems, Xi'an 710069, China.
authors.forename: Mengdan
authors.initials: M
authors.lastname: Zhang
authors.affiliation: Department of Transfusion Medicine, Shaanxi Provincial People's Hospital, Xi'an 710068, China.
authors.forename: Jiangcun
authors.initials: J
authors.lastname: Yang
authors.affiliation: National Engineering Research Center for Miniaturized Detection Systems, Xi'an 710069, China.
authors.forename: Haiping
authors.initials: H
authors.lastname: DU
authors.affiliation: College of Life Sciences, Northwest University, Xi'an 710069; Department of Transfusion Medicine, Shaanxi Provincial People's Hospital, Xi'an 710068, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Ma
authors.affiliation: College of Life Sciences, Northwest University, Xi'an 710069; National Engineering Research Center for Miniaturized Detection Systems, Xi'an 710069, China.
authors.forename: Cui
authors.initials: C
authors.lastname: Yali
mesh_terms: D002097:C-Reactive Protein / Q000032:analysis*; D006046:Gold; D006801:Humans; D007124:Immunoenzyme Techniques / Q000379:methods*; D008163:Luminescent Measurements; D008280:Magnetics
chemical_list: D006046:Gold; D002097:C-Reactive Protein