Instrument: Unisense H2S microsensor

The Unisense H2S microsensor is a tool for studying H2S production and oxidation in a wide range of applications. The H2S microsensor is a miniaturized amperometric sensor with internal reference and a sensing anode. The anode is polarized against an internal reference. Driven by the external partial pressure, H2S from the environment penetrates through the sensor tip membrane into the electrolyte where the H2S is ultimately oxidized by the anode. This generates a current in the pA range which is measured by a picoammeter. See more on the manufacturer's website: https://www.unisense.com/H2S/