Parameter Method Compound MOX HCT RMSEP PLS 0.039 0.055 PCR 0.041 0.051 Correlation coefficient PLS 0.9999 0.9998 PCR 0.9999 0.9998 Slope PLS 0.9923 0.9993 PCR 0.9935 0.9999 Intercept PLS 0.0579 0.0327 PCR 0.0532 0.0226

Table 3: RMSEP and statistical parameter values of MOX and HCT prediction using multivariate spectral analysis methods