Chemometrics and statistical analysis of spectral data

The description of the various spectral techniques to obtain information regarding the chemical changes occurring in the reacting polymer during processing has focussed on the 

The questions that may be asked in analysing the data measured by, say, a fibre-optic NIR or Raman spectral analysis system as described in Section 3.4.2 above are as follows. 

Each of these questions can be answered provided that the data are collected with the appropriate level of precision. There are many specialized texts (Adams, 1995, Jolliffe, 1986, Malinowski and Howery, 1980, Pelikan et al, 1994) and review articles (Lavine, 2000) on chemometrics, and in the following section it is intended to address only those methods most commonly used in spectral analysis of chemorheological data using remote spectroscopy. 

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