CALIBRATION TRANSFER ACROSS NEAR-INFRARED SPECTROMETRIC INSTRUMENTS USING SHENKS ALGORITHM - EFFECTS OF DIFFERENT STANDARDIZATION SAMPLES

In this paper, transfer of calibration models between near-infrared sp ectrometric instruments using three different standardisation sets is described. The first set contains samples which are very similar to th e agricultural samples from three different sets to be analysed, the s econd set contains generic standards, and the third one contains pure organic and inorganic chemicals. To test the accuracy of each standard isation, root mean square errors and correlation coefficients are comp uted before and after standardisation. To test the predictive ability, standard error of prediction for the three different prediction sets are also computed before and after standardisation. For standardisatio n, Shenk's algorithm is used: a description of this algorithm is given .