Background: Measuring dissolved gas concentrations is vital in industrial, environmental, and biomedical fields, with absorption spectroscopy offering high sensitivity and selectivity. However, achieving this often requires bulky components that aren’t ideal for portable or in-situ sensors. Miniaturizing optical cells is crucial for working with limited or inaccessible samples. A more compact sensor with a small gas inlet, optical cell, and sample volume could improve portability, enable in-situ use, and reduce costs.
Technology Overview: SAGE supports field-portable, in-situ, and benchtop measurements. The sensor can measure dissolved gases in liquids using only 40 nanoliters of the same gas and produce a sample analysis time of only minutes. In addition, using a hollow-core fiber optic sensor allows analysis to be simple, robust, and conducted with a compact configuration.
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