| 
   
  |  | Linearity | Precision (CV %) | Accuracy (RD %) |  
  |  | Slope | Intercept | correlation coefficient | High QC | Middle QC | Low QC | High QC | Middle QC | Low QC |  
  | Day 1 | 0.003091 | 0.032631 | 0.9968 | 2.4 | 2.5 | 4.9 | 4.2 | 2.2 | 1.8 |  
  | Day 2 | 0.003115 | 0.025557 | 0.999 | 9 | 3.7 | 7.4 | -1.1 | -4.6 | -4.7 |  
  | Day 3 | 0.002956 | -0.01273 | 0.997 | 3.1 | 4 | 10.1 | 0.9 | -0.1 | -7 |  |