Bürkert FIA module for iron content analysis
Bürkert has developed a flow injection analysis (FIA) module for analysis of iron content in an online analysis system, which combines all of the necessary components, including a control unit, in a small space. FIA has been used for quantitative analyses in laboratories for years; now, due to miniaturisation using microfluidic components, the process can be carried out using a field device and the iron content can be continuously monitored at the measuring point.
In flow injection analysis, the reagent is mixed into the water sample by means of a pump. The microfluidic mixing section following the injection provides for even and complete mixing. The liquid then passes through a flow photometer that measures the absorption over time. The iron content can be determined photometrically from the detected peak-shaped signal and is then available for the control, monitoring and documentation of the water preparation.
The data transfer takes place via the EDIP (efficient device integration platform), which enables intelligent networking of all electronic Bürkert devices. The FIA module is supplemented with a supply unit for reagent, calibration and cleaning solution. It is automatically calibrated with an offset and cleaned with rinsing solution at regular intervals.
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