Automated system for spectrophotometric detection of liquid phase hydrogen peroxide for concentrations up to 5% w/w

An automated flow injection analysis system for $H2O2$ detection in the liquid phase, based on the photometric determination of the complex between hydrogen peroxide and a titanium (IV) reagent is presented. The system was tested for monitoring the $H2O2$ concentration in a lab-scale experimental setup for $H2O2$ direct synthesis. In its final configuration, the developed system allows a reliable and reproducible determination of $H2O2$ for a broad concentration interval between $1.02×10−3moll−1$ and $1.16moll−1$⁠.