Sample Correlation of center and slope spectra r (s, m) r (m, e) PRG 0.994 0.991 PRG (PREGALIN M 75) 0.991 0.994 MC 0.994 0.992 MC (PREGALIN M 75) 0.997 0.996

Table 1: Peak purity correlation results of PRG and MC in two formulations at peak start, middle and end using WINCATS software.