The PolySense team has just published a new article on Frontiers in Environmental Chemistry Journal (IF 4.927) reporting on a photoacoustic detection module based on a gold-plated photoacoustic cell aimed to measure hydrogen sulfide (H2S) gas in sewers. A 1582 nm distributed feedback (DFB) diode laser was employed as the excitation light source of the photoacoustic sensor. The sensor was tested for in-field measurements by sampling gas in the sewer near the Shanxi University canteen: levels of H2S of 81.5 ppm were measured, below the 100 ppm limit reported by the Chinese sewer bidding document.
The following link provides access to the article:
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