Work

Enhanced mid-infrared multi-bounce ATR spectroscopy for online detection of hydrogen peroxide using a supercontinuum laser

Year: 2018

Type: article

Abstract: A compact multi-bounce attenuated total reflection (ATR) probe combined with a Fabry-Pérot filter spectrometer (FPFS) has been developed for detection of hydrogen peroxide used for oxidative gas scrubbing operating in the mid-infrared (MIR) spectral region. A novel MIR supercontinuum light source is employed to enhance the quantification capabilities of the sensor and is compared to a classical thermal emitter. An improvement of a factor of 4 in noise and approximately a factor of 3 in limit of detection is shown in this study allowing fast inline detection of aqueous hydrogen peroxide solutions around 0.1%.

Source: Optics Express

DOI: 10.1364/oe.26.012169

Authors: Christoph Gasser, Jakob Kilgus, Michael Harasek, Bernhard Lendl, Markus Brandstetter

Institutions: TU Wien, Research Center for Non Destructive Testing (Austria)

Language: English

Topic: Spectroscopy and Laser Applications

Subfield: Spectroscopy

Field: Chemistry

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funder: Österreichische Forschungsförderungsgesellschaft