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Retinol-Binding Protein (RBP) assays, for serum and urine, by Turbidimetry and Nephelometry

TRIMERO Diagnostics offers IVD CE marked Retinol Binding Protein assays, for serum and urine samples, available for nephelometers and the most popular Clinical Chemistry analyzers present on the market.



  • Method: Particle-Enhanced Immunoprecipitation (Turbidimetry/Nephelometry)
  • Initial Measuring Range – Serum: 5 – 120 mg/L
  • Initial Measuring Range – Urine: 0.01 – 1 mg/L
  • LoQ – Serum: Less than 5 mg/L
  • LoQ – Urine: Less than 0.03 mg/L
  • Repeatibility: CV < 3%, for both serum and urine
  • Within-Lab Precision: CV < 3%, for both serum and urine
  • Method Comparison: Bias <10% (comparative method: nephelometry)
  • Proven assays, on the market since 2016
CLI 231027 doc imatge RBP

The particle-enhanced reaction determines a very good sensitivity for the assays allowing the measurement of the extremely low urinary levels and results in excellent method performance.

Other TRIMERO’s assays available for nephelometry and turbidimetry include:

KLoneus® Free Light Chains (FLC) for serum and urine, Serum Amyloid A, C1q Complement, C5 Complement, Factor B (C3 Proactivator), C1 (Esterase) Inhibitor,  IgD Immunoglobulins, Soluble Transferrin Receptor (sTfR), Hemopexin, Cystatin-C for serum and urine, A1-Microglobulin, Beta-2 Microglobulin for serum and urine, Kappa and Lambda Light Chains for serum and urine.