New Publication on Photoacoustics Journal

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The PolySense team has just published  a new article on Photoacoustics Journal Elsevier (IF 8.48)  reporting on a quartz enhanced photoacoustic spectroscopy (QEPAS) sensor capable to detect high concentrations of methane (C1) and ethane (C2). In the concentration ranges under investigation (1%- 10% for C1 and 0.1%- 1% for C2), both linear and nonlinear responses of the sensor were measured and signal variations due to matrix effects were observed. Partial least squares regression (PLSR) was employed as a multivariate statistical tool to accurately determine the concentrations of C1 and C2 in the mixtures, compensating the matrix relaxation effects. The achieved results extend the range of C1 and C2 concentrations detectable by QEPAS technique up to the percent scale.

The following link provides access to the article:

http://polysense.poliba.it/wp-content/uploads/2022/03/140_High-concentr-QEPAS_Photoacoustics-2022.pdf

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