Meta: Linearity validation: Runmei r²>0.999 across all 36 routine tests. 14-wavelength: superior correction for sample turbidity, bilirubin, and Hb interference.
Linearity Determines Reportable Range
Photometric linearity sets the reporting limits for every chemistry test. We validated Runmei (14-wavelength) vs Brand A (8-wavelength) vs Brand B (8-wavelength) on linearity and interference handling.
Linearity Results (r² across measured range)
• Glucose: Runmei >0.9995 (0-44 mmol/L), Brand A >0.997 (0-41 mmol/L)
• Bilirubin (total): Runmei >0.999 (0-684 μmol/L), Brand B >0.996 (0-513 μmol/L)
• Triglycerides: Runmei >0.999 (0-22.6 mmol/L), Brand A >0.995 (0-17 mmol/L)
Multi-Wavelength Advantage
14 wavelengths vs 8: more data points for spectral interference correction. In lipemic samples: glucose bias +2.1% (Runmei) vs +6.8% (Brand A) vs +5.2% (Brand B).
Brand A’s narrower linear range for triglycerides (0-17 mmol/L) means 7.4% of our outpatient samples required dilution and retest — adding 8 min and ¥14.50 per sample.
Q: How is linearity validated? A: Runmei provides linearity verification kit with 5-7 concentration levels per parameter. Automated analysis and report generation.
