#$%^&*AU2015258247A120151210.pdf#####Abstract A diagnostic imaging agent useful for positron emission tomography (PET) imaging as well as to improved hardware for producing such imaging agents is described. Flutemetamol ( 18F) Injection for the imaging of f-amyloid plaques in the brain and 5 methods and devices for preparing same are described including the automated synthesis and purification of [18 F]flutemetamol by means of solid phase extraction (SPE).1/1 1 FIG. 1 H N H HO -~--S -N 0 HO~S~ NN H HOO N N or H HO -yS - N N N\ N H