Application note: Optimising process NIR analysis with Specac’s latest product - tuneable-pathlength Spyder™ process flow cell.
The optimal pathlength for an on-line FT-NIR process measurement needs to be determined by experimentation. Here we demonstrate the feasibility of measuring water in acetone by NIR spectroscopy at various pathlengths using an adjustable Spyder™ process flow cell, as a prelude to full-scale implementation of NIR process analysis on a production line.
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