Shengmi Technology announced today the successful development of the 4H2O2-100 hydrogen peroxide electrochemical sensor, which significantly improves response speed and stability through innovative electrode design and electrolyte optimization. As a new member of the 4-series sensor family, its mass production will strongly support the demand for high-precision hydrogen peroxide detection in fields such as medical disinfection and environmental monitoring.
response curve
The above figure shows the test data of 10 4H2O2-100 sensors exposed to air for 1 minute and 100 ppm H2O2 gas for 5 minutes. The baseline is stable, T90≤120 s。
resolution
The above table shows the test results of 10 4H2O2-100 sensors, with a resolution of ≤ 15 ppb at twice the standard deviation.
linear
The above figure shows the test results of 10 4H2O2-100 sensors with air, 50 ppm, 66 ppm, and 100 ppm H2O2 respectively. The linear determination coefficient R ² is 0.9996 within the H2O2 concentration range of 0-100 ppm.
repeatability
The above table shows the output signals measured by 5 4H2O2-100 sensors with 100 ppm H2O2 gas injected three times each. After the output is stable, record the output values. The RSD of 3 times is less than 2.0%.
Exposure testing
The above table shows the output signals measured by 10 4H2O2-100 sensors when 100 ppm H2O2 gas was introduced for 30 minutes, with an average change rate of less than 6%.
cross interference
The above table shows the cross response values of the 4H2O2-100 sensor to various gases.
4H2O2-100：
The data is completely measured by real hydrogen peroxide gas;
Adopting zero bias design, the baseline is faster and more stable, the circuit design is simpler, and the temperature drift is smaller.
