Based on the difference in thermal properties of OC and EC, the product separates the OC and EC under different carrier gases and temperature control. According to the change in laser intensity transmitted from or reflected from the filter membrane, the product corrects the error caused by OC carbonization during thermal decomposition, thereby accurately measuring the OC and EC concentrations in ambient air particles.
The unique quartz membrane fixing method is adopted, and the filter membrane is easy to install and replace, and the data credibility is high.
Thermo-optical transmission method (TOT) and thermo-optical reflection method (TOR) are used simultaneously to meet different standard requirements.
The furnace wire adopts high-performance alloy wire combined with precise temperature control algorithm, which heats up quickly and accurately, and the furnace wire has a long service life.
It has a daily automatic zero-point verification function to improve the reliability of data, and the heating program can be customized, which is convenient for users to choose freely.
It can be applied to urban air composition monitoring and particulate matter source analysis.