Figure 2From: Development of an enzyme linked immunosorbent assay for detection of cyathane diterpenoidsCalibration graphs for the quantification of striatal B. (a) Example of sigmoidal calibration curve for quantification of striatal B by indirect competitive ELISA. (b) Example of linearity of striatal B calibration curve. The linear working range was found to be 0.001 - 2.5 μg mL-1, y = −0.722 ln(x) – 2.3774, R2 = 0.9904.Back to article page