Cantilever-enhanced photoacoustic measurement of HTO in water vapor

Juho Karhu, Markus Nyman, Marja Siitari-Kauppi, Tuomas Hieta

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)
52 Downloads (Pure)


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.
Original languageEnglish
Article number100443
Number of pages6
Early online date30 Dec 2022
Publication statusPublished - Feb 2023
MoE publication typeA1 Journal article-refereed


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