NIR spectroscopic imaging

We will now discuss some examples where NIR spectroscopic imaging has been used to evaluate some materials of commercial interest. This will include examples from a variety of home/commercial product areas including fabric wetting, spray deposition, food composition and surfactant deposition on nonwoven materials. These examples will demonstrate both qualitative and quantitative uses of NIR spectral imaging for determining chemical distributions in nonhomogeneous materials. 

In the application discussed below, the derivation of quantitative results from NIR spectroscopic imaging data of solid drug formulations is reported. In order to assess the vaUdity of these procedures, however, the results will be compared to the compositional analysis of the same sample set by conservative NIR spectroscopic diffuse-reflection measurements with a single-element detector [68]. 

Data Modelling (Aas, Norway), together with Sintef ICT, and the Norwegian company Qvision AS (Oslo, Norway). This industrial online vis-NIR spectroscopic imaging scanner was used for mapping (i) water content in salted cod [58] and (ii) fat and pigment contents in salmon fillet (Figure 7.4) [61]. 

FT-IR and NIR Spectroscopic Imaging Principles, Practical Aspects, and Applications in Material and Pharmaceutical Science... 

In the presented study, FT-NIR spectroscopic imaging was utilized to monitor the penetration of butanol(OD) molecules into a PAll film of several hundred micrometer thickness [77]. In a previous study [75], it was shown that the... 

Figure 8.30 Sample holder for the temperature-controlled FT-NIR spectroscopic imaging measurements of the diffusion of butanol(OD) into a PA11 sheet. (Reproduced with permission from Ref. [77] 2011, Society for Applied Spectroscopy.)...

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