Fig. 5From: Using Blue Mini-LEDs as a Light Source Designed a Miniaturized Optomechanical Device for the Detection of Direct BilirubinThe linear analysis of direct bilirubin (0.855–17.1 μmol/L) by Hitachi U-3900 at 460 nm; the regression equation was y = 0.0265x + 0.0279, R.2 of 0.998Back to article page