Using molecularly imprinted polymers and fluorescence sensing, researchers at BAM have developed a portable solution to rapidly detect ‘forever chemicals’. Per- and polyfluoroalkyl substances (PFAS) are among the analytically most challenging compounds in today’s chemical management. Their diversity, chemical stability and occurrence down to trace levels require sophisticated analytical techniques. While such laboratory techniques are essential for regulatory evaluation and environmental monitoring, they are unable to deliver the rapid feedback needed for industrial process control and emissions management. To address this gap, BAM has developed a new on-site PFAS analysis approach that delivers fast, application-oriented results directly at the point of need.¹ The method uses advanced molecular recognition integrated into a compact system that provides reliable results within minutes. Instead of attempting comprehensive PFAS detection, the system targets specific PFAS subclasses relevant to a particular application, enabling speed and robustness. Molecular imprinting as the basis for selectivity The sensing concept relies on molecularly imprinted polymers (MIPs), synthetic recognition elements designed to selectively bind certain molecules or groups of related molecules. By choice of an adequate …