(Process Cells) AN18-09: Transmission Cells for the NIR Analysis of Liquid and Vapour Phase Process Streams

The fundamental advantage of using NIR analysis is real-time in-situ analysis of your industrial process.

Near infrared (NIR) has bought many benefits to process plant operators as a wide variety of sampling protocols have been developed. Several gas and liquid flow cells can be directly inserted into a process stream or inserted into a fast loop by-pass and monitored using a fibre coupled multiplexer to a single remote spectrometer.

The benefits of in-line analysis are:

• Real time information
• Better process control
• Enhanced product quality
• Optimised plant throughput and efficiency
• Plant data for quality management
• Monitoring of plant safety
• Reduced amount of process samples for off-line analysis resulting in reduced exposure of plant personnel sampling equipment  

Transmission flow cells have been developed which are capable of collecting both liquid and vapor phase NIR spectra over fibre optic runs many hundreds of metres in length.

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