How is the log graph threshold value (Ct) for the Rotor-Gene Q determined?
FAQ ID -2088

Based on the defined standards present, the automatic threshold function of the Rotor-Gene Q scans through all the possible threshold levels until the best fit is determined. This is defined as the R value or correlation coefficient, which is maximized to most closely approach 1.0. If there is no standard present, the threshold can also be set manually.