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C. Gasser, B. Lendl:
"MIR spectroscopic determination of hydrogen peroxide using tunable Fabry-Pérot MEMS filter";
Vortrag: IR WORKshop, Olching, Germany; 10.11.2014 - 11.11.2014.

With increasing demand of PAT (Process Analytical Technology) for on- or inline monitoring of chemical as well as pharmaceutical processes, the need for powerful, robust and low priced sensors increases. We present a simple, small-sized and cheap technique for IR spectroscopy of liquids, in this case for hydrogen peroxide solutions. The combination of a pulsed thermal IR source with tunable Fabry-Pérot filters with integrated pyrodetectors allows the construction of a small transmission setup using a flow cell. We are able to show that this way IR spectra of aqueous hydrogen peroxide solutions can be collected and quantification is possible.

IR spectroscopy, PAT, Fabry Perot