Infrared spectroscopy maturation measurement

What is clearly needed is a metric that could monitor the blend uniformity, in real time as the blend occurs. Ideally, such a process would be noninvasive to the blend process, as accurate as the offline measurement, and nonlabor intensive. There are a number of techniques that have been developed to serve as a real-time blend uniformity monitoring. Near infrared (NIR) spectroscopy is probably the most mature technology that has been applied to blend imiformity analysis and will be discussed in detail below. 

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