Karhu , J , Nyman , M , Siitari-Kauppi , M & Hieta , T 2023 , ' Cantilever-enhanced photoacoustic measurement of HTO in water vapor ' , Photoacoustics , vol. 29 , 100443 . https://doi.org/10.1016/j.pacs.2022.100443
Abstract:
A photoacoustic detection of tritiated water (HTO) is presented. The method uses cantilever-enhanced photoacoustic spectroscopy (CEPAS) to reach sub-ppb sensitivity for HTO in the gas phase. A noise equivalent concentration of 0.88 ppb is reached with a sampling time of 1 min. The high performance and small sample volume of CEPAS allows sensitive detection of HTO from a sample with low total activity.