“Development and Performance Evaluation of a Hydrogen in Argon Detector with 30 ppm Detection Limit”

https://pubmed.ncbi.nlm.nih.gov/38117195

The abstract describes the development of a Hydrogen in Argon Detector (HAD) that measures the thermal conductivity difference between argon and argon with hydrogen, and its performance evaluation with a Wheatstone bridge circuit and temperature correction factor, achieving a detection limit of 30 ppm (3σ) of hydrogen in argon.