Hi all,
I wanted to ask if anyone can recommend (ideally with references) an in situ H2O2 sensor probe for their detection in plasma activated water?
I am looking for a device that resembles a pH sensor probe which attaches to an output unit. The required device instead gives you real-time H2O2 concentration measurements in your plasma activated water. This is required to be integrated with our reaction vessel without requiring further sampling, processing and analyzing.
Thanks in advance,
Jerson
Hallo,
as far as a sensor, there are a lot of sensors under development, not many are commercially available. The Vaisala sensor might work in a solution. It is worth checking out (https://www.vaisala.com/en/products/instruments-sensors-and-other-measurement-devices/instruments-industrial-measurements/hpp272).
Another possible sensor is based on calorimetric principle (though it depends on the concentration of H2O2 in the water). Check my profile for sensor-related development.
The easiest solution might be the use of H2O2 test strips (colorimetric). The method is typically applied in packaging industry to measure H2O2 in the product after sterilization. These test strips come in different concentration detection limit (down to 0.5 ppm). https://www.mn-net.com/Testpapers/QUANTOFIXteststrips/QUANTOFIXPeroxid1000/tabid/10332/language/en-US/Default.aspx
Good luck
Hi Zaid,
Thanks for the reply. Yes when I went through the literature it seems they are still in the research stage. Those that are commercially available, I am a bit sceptical about. Unless someone who already used them can vouch for them.
Interesting approach you took for the theoretical modelling of the calorimetric sensor. Has a physical model of the sensor been developed.
Yes, we use test strips to gauge and provide a quick initial estimate of the peroxide concentration we are assessing.
Thanks again for the reply,
Jerson
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