| abstract |
The invention concerns automated, inegrated microfluidic devices comprising a chemical reaction chip for performing reactions, such as the preparation of radiopharmaceutical compounds. The chip comprises an integrated microscale column and is configured for liquid flow from the column to at least one flow channel. The fluid flow is controlled by at least two on-chip valves. These double valves are configured consecutively and within proximity of 300 micrometer from each other. The reaction chamber is substantially 'coinshaped', e.g. a reaction cylinder, preferably having a height diameter to height ratio greater than 3. Curved inlet and outlet channels ensure en effective elution. |