The PolySense team has just published a new article on Sensors and Actuators B Chemical journal reporting on a methane, ethane and propane quartz-enhanced photoacoustic sensor employing a single interband cascade laser source. The following link provide access to the article.
http://polysense.poliba.it/wp-content/uploads/2018/12/100_C1-C2-C2-QEPAS_Sens-Act-B_2018.pdf